A new anime themed IP is being released by Blizzard. It features a group of heroes named Overwatch, who over time became more merceranries than heroes. It's going to be a team based mutliplayer shooter. There are going to be a lot of heroes for players to choose from. We probably will have a long wait until this comes live, but it looks to be a really awesome entry into the arena sports genre.
Jeff Kaplan states they take genres they love and make a game out of it and make it better. We're all excited to see more information about this title from BlizzCon.