I sure hope they don't, even with 4 players it gets hard to tell whats happening at times, if anything I hope they reduce it to 3.
Also there is a issue where more players means that the scaling would be off the wall and you would basically get one shotet and that is no fun whatsoever, also you feel like you are actually contributing to the action, with 8 players 3 can be wanking on the side and it would't have made any difference.