Here is an interesting video interview from a few weeks ago, with BioWare’s Dr. Greg Zeschuk, about Mass Effect 2 (partially developed in Montreal) and 3.
 
From Joystiq:
"You may not even see the impact of a decision in Mass Effect 1 in Mass Effect 2, but in Mass Effect 3," BioWare’s Dr. Greg Zeschuk told [...]

From Kotaku:
Greg Zeschuk, co-founder of Mass Effect  and Dragon Age developer BioWare, says that the sci-fi franchise will live on in other games after the role-playing game trilogy wraps up in Mass Effect 3.
Zeschuk said during today’s episode of Kotaku Talk Radio that the Mass Effect property is a "valuable universe," that the [...]