With the recent announcement of Halo 5: Guardians coming to Xbox One in 2015, the hype for next-gen Master Chief grows and it looks like it’s just getting bigger.

As Endgadget reports, Microsoft is working with a currently unknown developer to bring “Halo: The Master Chief Collection” – a next-gen upgrade of the franchise that includes Halo: Combat Evolved, Halo 2, Halo 3, and Halo 4 – to the Xbox One some time this year. Fillers Halo: ODST and Halo: Reach might not be included, considering that they don’t feature the legendary Spartan, but it’s not certain.

It’s speculated that Sabre Interactive, who tackled Halo: Combat Evolved Anniversary and who is currently said to be working on an unannounced Xbox One project, may be heading up this rumored next-gen Halo collection. The reports also fall in line with an older NeoGAF post by “ntkrnl” who had much to say about these new Halo projects.

Whether Microsoft is in the process of this remains to be seen, but earlier statements from then Vice-president Phil Spencer suggest that it could be part of his plan to deliver even more Halo.