The lights are on
Bungie is no longer owned by MS but MS still owns Halo. You are never going to see Halo on another console.
QFT - This is why Halo Wars was made by another Microsoft owned developer. And it's how MS is able to launch halo waypoint and all that other halo related media. Bungie has sudo creative control over the unsiverse. But Microsoft owns the rights to the franchise.