This seems related, a Microsoft Studios creative director recently set up a poll on the official Killer Instinct forums: What's your interest in a PC version of KI? Assume cross-play is supported.
Some people on that forum are silly:
Microsoft's main profit is not with games for sale, but with Xbox Live subscription.
KI port for PC will not make Microsoft more subscribers to Xbox Live, on the contrary, this will do is Xbox Live subscribers who bought the Xbox One feel betrayed because Microsoft can not honor with their clients the availability of exclusive games.
Killer Instinct along with Halo, Battletoads, Banjo Kazzoie, Conker, Gears of War, Forza, Blue Dragon and Lost Odyssey are games keys to the identity of the Xbox One, and therefore must be permanent exclusive games on Xbox One.
Bad Idea.
do a 360 version instead.
some franchises should stay console only.