what would it be though? a game like Army of Two?
i would rather it stick to a more arcadey style, i dont want it to be too western
just like this video but way better graphics and better level designs, drop in/drop out online coop, make use of next gen features on the PS4 controller
as a matter of fact, since contra 4 had 4 characters to choose from, they might as well let you have 4 players in a sequel. i could imagine some giant bosses that have a bunch of parts or weapons that keep all 4 players busy