At E3 last year we got a teaser trailer for the next Halo game, but when Microsoft announced its list for games of 2014, Halo was surprisingly absent from the list.
According to Rob Semsey, Halo senior PR manager, the next chapter in the Halo franchise will arrive on Xbox One later this year.
(@RobSemsey) Rest assured your next Halo journey WILL begin in 2014. #staycalm
Apparently it was absent from the list because they don't have an official name yet so it's unsure whether the next game will be Halo 5 or something else.
Either way, I think we will have all the answers at E3 2014 or before then.