So far, the non-game material has been very careful about not stepping on the game's toes. Even the comic, which involves shepard doesn't make any reference to his/her gender or deeds.Programmed_For_Damage said:I remember reading somewhere that any Mass Effect movie will be about Commander Shephard and that there is an official "canon" to the Mass Effect universe that Bioware have come up with, despite the variable nature of the content.
The second novel mentions shepard merely as a passing reference and only references the destruction of the citadel, and doesn't even make a statement about the nature of the council - it's referenced, but the council is reformed even if you destroy it in ME1, so that's even in the air.
The only thing that seems CLOSE to establishing cannon is the non-imported Mass Effect 2 game's choices, but most of those choices involve omissions. Only people who have played through Mass Effect will understand what's missing in ME2 that shows any sort of cannon.
I don't think they'd go through so much trouble of keeping cannon regarding the game to just stomp all over that major selling point of the game for a movie that will probably fail anyway.