It may not be "officially" confirmed but I wouldn't be surprised at all. It seems every game Microsoft is making now is also landing on the PC as well and most likely one copy will let you play on both devices.
To be honest I think it's a good move. They get more game sales, better rep with PC gamers than before, and it will give gamers more choice. Sure they may sell a few hundred thousand (maybe a couple of million) less Xbox's, but they will more than get back that money due to higher game sales and more people being exposed to their ecosystem (which is where the money is made).







