Which system? PC, 360, or XB1?
If it was exclusive to XB1, then I'd agree that it'll be a system seller. But I would guess that roughly half of all software sales are going to different platforms.
On top of this, Titanfall doesn't have enough mass appeal. No single player, no local multiplayer (no split screen). Those two things will be preventing big sales.
So I'll say that while it'll sell fine, it's by no means going to be a 'system seller' for XB1.








