is rage will have split screen mp or coop

Welcome to the forums. There are a few active threads on the first page that handle the same topic as yours, could you please use those threads? Admittedly, the first one hasn't been answered yet.

http://www.gamesas.com/index.php?/topic/1166401-does-rage-have-split-screen/
http://www.gamesas.com/index.php?/topic/1163678-co-op/