User blog comment:Bluegear93/Volus/@comment-2219564-20121013102500/@comment-3228423-20121014200700

@Mittens The return of the Collectors doesn't mean anything. It's been proven that there are multiple Collector ships, and regardless of Shepard destroying one ship and the main base, there are still countless others.

And as the ME3 singleplayer doesn't even mention what exactly happens on the frontlines, I say that the multiplayer is canon.