Overall: There is no indication that IRCC will be administering the Oath of citizenship abroad for general adult applicants. Not anytime soon anyway.
Acknowledgements:
@Das67 already referenced the key information above, referring to the PDI update July 8, 2021. Not sure why, but the import of that information seems to have been largely ignored in the discussion that followed.
So I elaborate, as I am wont to do.
We reread and interpret too much without any insight. There is no difference in text for Test and Oath. Test is being allowed hence its same way for oath too.
The cure is to do the homework. There are PDIs specifically addressing these matters, including recent changes (July 8, 2021) to "information about Foreign Service Officers administering the Oath abroad."
List of recently updated PDIs is here:
https://www.canada.ca/en/immigration-refugees-citizenship/corporate/publications-manuals/operational-bulletins-manuals/updates.html
Program delivery update regarding the oath (references more than just the change in information about administering oath abroad) is here:
https://www.canada.ca/en/immigration-refugees-citizenship/corporate/publications-manuals/operational-bulletins-manuals/updates/2021-oath-of-citizenship-updated.html
Current PDI for "Oath of Citizenship," as updated July 8, 2021, is here:
https://www.canada.ca/en/immigration-refugees-citizenship/corporate/publications-manuals/operational-bulletins-manuals/canadian-citizenship/ceremony/oath.html
For information specifically about administering the oath outside Canada, in the latter PDI follow link (or scroll) to section titled "Guidelines on location," and then the subsection "Taking the Oath outside of Canada."
SPOILER ALERT: This does NOT provide for administering the oath abroad to Section 5(1) applicants.
I am reminded of the lyrics in a Carly Simon song "
You probably think this song is about you." Well, for most citizenship applicants, this song ain't about you.
Additional reference: there are Citizenship Regulations specifically governing the Oath, beginning with Citizenship Regulation 19, here:
https://laws-lois.justice.gc.ca/eng/regulations/SOR-93-246/page-2.html#docCont
Citizenship Regulation 20 specifically governs the administration of the Oath "if the person is outside Canada;" that is here:
https://laws-lois.justice.gc.ca/eng/regulations/SOR-93-246/page-3.html#docCont
SPOILER ALERT: This likewise does NOT provide for administering the oath abroad to Section 5(1) applicants.
Note-Caveats:
-- Yeah, there tends to be a rather lot of "rereading" the same thing and parsing particular terms, and this does indeed tend to lack insight into what the policies, statutory provisions, regulations, rules, and practices actually involve. Again, the cure is to do the homework, to do the research, to read in context, to avoid parsing terms by referring, instead, to how the various elements apply to one another and work together. No guarantee we can totally figure this or that out, but we can for sure figure out a lot more doing real homework than can be done focusing on an intensive analysis of isolated statements.
-- IRCC is not good updating a lot of its information; this is a common problem with big bureaucracies, but IRCC seems to be on the worse end of the spectrum for this. So, yes, focusing on, let alone relying on, this or that particular statement or piece of information provided by IRCC is rife with pitfalls. This makes doing the homework more difficult, but also much more important. Example: the PDI "Citizenship: COVID-19 program delivery" still says that all knowledge tests, retests and ceremonies have been cancelled. The PDI generally covering the test and interview has not been updated since April 1 and does not at all address online testing abroad. Does not mean we should throw our hands up and speculate. It means to figure things out, as best we can, you need to do more research, dig deeper, and make a concerted effort to put information in context.
-- Post-Covid practices and procedures are on the horizon. Apart from my continuing skepticism about how the testing while abroad affects 5(1) applicants (a tangent I will not wander down here), odds seem high that will not be available indefinitely and perhaps not all that much longer, again to whatever extent it is a viable option now.
We don't know anything yet so I'm not going to say "IRCC has started allowed applicants to take oath outside Canada"
Well, we know that IRCC updated the applicable program delivery instructions within the last two weeks and made changes to the information regarding taking the Oath outside Canada, and those changes do NOT provide for administering the Oath outside Canada to Section 5(1) applicants.
Most aspects of citizenship application processing are subject to change, ranging from simple administrative changes in practice which the Minister can make without notice let alone consultation or parliamentary participation, to matters specifically governed by statute which can be changed but that requires the change to go through the full legislative process in Parliament. In-between there can be changes subject to various procedural requirements, including procedures governed by Regulation; changing Regulations is usually among the more complex procedures, typically but not always requiring notice and a period of consultation before the change is adopted and can take effect. All of which is to acknowledge that further changes may be in process, but given how recent this last update was, it would be rather strange to see a change to a procedure governed by Regulation, which administering the Oath abroad is (again, Citizenship Regulation 20), without notice let alone so soon following a formal change.
There is also a "manual" called "Citizenship Program Manual For Service Delivery Abroad," dated July 2020 (that is, a year ago) and available in pdf form by link from the PDI generally governing the Oath of Citizenship (which again is here:
https://www.canada.ca/en/immigration-refugees-citizenship/corporate/publications-manuals/operational-bulletins-manuals/canadian-citizenship/ceremony/oath.html#administering-oath); this "manual" provides some detail regarding a range of citizenship related matters that includes a section titled "Oath of Citizenship Abroad."
All that said, in contrast it is difficult to confirm what IRCC's actual policies and practices are in regards to administering knowledge tests to applicants abroad, but these are taking place at least to some extent. And even in terms of administering the oath in a virtual context, this is not clearly explained in PDIs and related sources. So, the door is not completely shut and locked on the prospect of oaths being administered to applicants abroad, but it does appear to be shut even if not locked.
Any change . . . will definitely take a long time in coming.
Why would it take a long time?
Not sure how long is "a long time," especially in regards to a process which takes as long as IRCC does in processing grant citizenship applications.
But there is a big difference in changing a practice which is totally within the administrative purview of the Minister, which includes the procedure for verifying that applicants have the requisite knowledge of Canada and Canadian citizenship (substance is governed by Citizenship Regulation 15), versus changing practices governed by statute or regulation. A change in practice only involving a change in the Regulations can be done far more quickly than one involving a change in the statute, which requires the full legislative procedure in Parliament, but most (not all) changes in practices governed by Regulation nonetheless require advance notice and a period of consultation (see the Canada Gazette for examples). Generally, again not always, but usually, changes in practices which require a change in the governing Regulation take a significant amount of time to adopt and implement, and moreover, there is simply more resistance to make such changes (does not mean they do not happen, but not so often, not so quickly, and for sure not so easily as administrative changes within the Minister's discretion).
Like testing knowledge of Canada, the Oath of citizenship is governed by substantive Regulation. Unlike testing knowledge of Canada, however, the procedure involved in administering the Oath of citizenship is also governed by Regulation. And this is mandated by statute, Section 24 in the Citizenship Act.
So, I cannot say it would take "a long time," but it is safe to distinguish how changes to the administration of the test have been made from what would undoubtedly be a longer, more complicated, and frankly less likely change in regards to the location for administering the oath abroad.
As noted before, however, the door is not for sure shut and locked. Regulation 22 might be interpreted to give the Minister discretion to administer 5(1) applicants the oath while they are abroad. Given the explicit parameters in Regulation 20, that interpretation seems rather unlikely to me, but I am no expert.