A cinematic CG trailer was shown at Microsoft's E3 press Conference to tease the obvious fact that Halo would be coming to their new next-gen console. Nothing is known about it other than that the next game will be aiming to play at 60 frames/sec for those of you who appreciate the fidelity. You can check out the teaser below.
Microsoft recently did a full reversal with regards to their DRM/online policies regarding their next-gen console after significant consumer outrage from gaming forums and in the mainstream media which mocked their strategy and attack on consumer rights. Early tracking of pre-orders showing their competitor Sony's PS4 outselling their console by a very significant margin globally in store and on-line was also helpful in pressuring the corporate giant to change course.