9. Mad Max
Originally a tie-in to the movie Mad Max: Fury Road, Mad Max is an open-world action game developed by Avalanche Studios, the studio behind the excellent Just Cause series of games. Not much of this has been shown, but the concept of a giant post-apocalyptic sandbox action game in the Mad Max universe sounds really fun, and the fact that Avalanche is behind it just makes it all the more exciting.
Mad Max is coming out sometime in 2015.