Hi Dhillon and Tunjiconga,
According to my calculations, based on the info from the other applicants who took their tests in Mississauga over the past 2-3 months, we should be expecting the letter/ecas status update during the next 3-10 days. However, as we don't know the work schedule of Mississauga CIC during the holiday season, this term may be prolonged (if CIC does not actively do oaths on Dec 25-Jan 1, we may be informed at the end of December as CIC regulations require CIC informs us not later than 14 days before the oath, not earlier). In any case, we can get an oath invitation, or RQ request, or letter stating that we should be attending the interview with the judge in the case we didn't pass the test (in which case we may also not get this letter until after some time once the interview with the judge is scheduled).
Dhillon, if you PR has expired, I would suggest you anyway wait the next 3-10 days. Renewal of the card indeed takes a a few weeks and you may want to wait for the reply from CIC before you take any further action.
I promise to post here as soon as I get any CIC letter/ecas status update and would ask you to do the same.