new kind of game types

With the release of halo 4 what do you think some new game types will be or some ideas you guys/girls have that would be new and fun.

I have always liked objective game types and i really hope they add something in the game like search and destroy. I think it would work really well in this game to, even with custom classes. I also think they might polish some of the newer game types in reach like chess and add new ones like checkers. What are your thoughts?