They could bring Warwick back if it turned out his death was faked as part of some undercover operation to fully flush out who the under-sheriff was working for? or to place him in witness protection?

It'd be really hard spin and a little cheesy though.. he died in Grissom's arms

haha no i dont think

Yeah, they way he died it just wouldnt work to pull that off without seeming like a load of B.S.

Well the only way for Warrick to be in the movie is if they set the movie BEFORE his untimely death. That could be a possiblity... who says the movie has to take place in the present?? They could set the movie before Sara's departure as well. (just a random thought)