With a bunch of games from MS side that is going to be both PC and Xbox One, I would expect it at this point.
I know they tried the waters with Quantum Break but that wasn't necessarily their finest works there. Forza 6 has done a decent job and has been their test platform between console/pc code if not mistaken.
ReCore will be the first one per MS that will be both Xbox One/PC release and with Forza Horizons 3, Gears of War 4, Scalebound, Halo Wars 2, and so forth.
IMO this will be great if it does happen, been looking forward to playing some Xbox Games both on PC and Console. Best part only paying for one and getting both, seems more of a win win to me if it pans out. We'll see with ReCore.