Xbox Wire today mentioned a few 2014 titles; Halo on Xbox One not listed due to official name of the next title not announced yet.— Rob Semsey (@RobSemsey) January 6, 2014
Rest assured your next Halo journey WILL begin in 2014. #staycalm— Rob Semsey (@RobSemsey) January 6, 2014
The nameless Halo game was announced during E3 2013; it's expected to pick up where Halo 4 left off and incorporate cloud features.
During an interview with Polygon just before the Xbox One's launch last year, Microsoft Studios corporate vice president Phil Spencer said that more game announcements were yet to come. However, Spencer couldn't provide any updates on when the next-gen Halo would arrive.
Following the Xbox One's arrival, Spencer said there was no new Halo title at launch because of the team's commitment to finishing Halo 4.