Greedy, no good microsuck people will not put it on PC for years.
Greed, ironically, will drive them to do it just like every other "console" only game did.
Halo Wars is a RTS made for Console gamers just like Tom Clancy's EndWar.
They brought EndWar to PC and that doesn't seem to fit well.
Do not port games from Console to PC. Better just to build it again from the ground up for PC.