Surprised that no one has posted about this...
Halo 5: Guardians coming to Xbox One in autumn 2015.
Also, in that article, 343i's Bonnie Ross mentioned at the end that our Halo journey begins *this year* with a "
giant leap"... which perhaps lends support to this rumour:
" 'Halo: The Master Chief Collection' coming to Xbox One this year, collects 'Halos 1-4 "
Most people had been expecting Halo 2 Anniversary, given that the original was released in 2004, but to get *all four* remastered for Xbox One would be awesome!
[if true]