If he is feeling 100% physically, and is strong in the weight room, i don't see why he can't do well right now, or maybe need one game to break the rust. think of it like he has just gone to training camp. the patriots game is his one preseason game that vets get. and then onto the next where you expect guys to be very strong. On the one hand, he isn't going to have the reps of guys who have been playing all year. on the other hand, he is going to be WELL RESTED. It's a blessing we can get him back for a game where we SHOULDN'T (emphasis on shouldn't) need too much from him, right before we start our really big push.
GO BILLS!