What i heard and know , if you get AOR then when u moved out, you can transfer ur application processing from the home country.
Not sure if you can do the same before AOR and what the impact it may have on further processing.
One of my friend went through same situation , he got the AOR but waited for MR for more than 5 months and in between his work permit and visa expires.So he went back to the home country and requested further processing from the home country ,now got the PR and will be doing landing process in some time