During Microsoft's E3 press conference, 343 Industries unveiled a teaser trailer for the next Halo
game. According to the presentation, the latest game in the series will run on a brand new engine at a beautiful 60 frames per second, will be “enhanced by cloud computing”, has dedicated servers and will be coming to the Xbox One sometime in 2014.
As you can see from the end of the trailer, the game is simply titled Halo
at the moment, though according to Halo Waypoint, the official title is to be announced “at a later date”.UPDATE
We've also got a few screenshots from that trailer.