Who here wants to see Halo Wars 2 come to Steam?
It would revive the population so much and its the most obvious business strategy to do. There's probably some confidential legal thing that doesnt let them, or just complete lack of care for HW2 as a whole.
This needs to happen pretty soon after MCC porting is done (only a few more weeks finishing up Halo 4 for the MCC Team, then they will be converted to being on sustain through updates and features going forward). We need the background for Steam players to know about the Banished leading up to Infinite's release. Same with Halo 5 knowing about the Guardians leading up to Infinite as well.