I read the source, which refers to EA Montreal... Which are two different studios? :/
In fact, according to this: http://www.techvibes.com/blog/bioware-to-e...r-mass-effect-3 Bio Montreal has basically a skeleton crew.
vs. EA Montreal
Nope, the source clearly states Bio Montreal. They're hiring those people and you can read it on the Bio website.
Also while it's true that montreal was only a skeleton studio to support Edmonton on ME2, they're now ramping up to become a full-fletched and independent studio that works on it's own games.