Square Enix CEO Yosuke Matsuda admitted recently that the reason Square Enix let IO Interactive keep Hitman was that it wouldn't be Hitman otherwise.
Hitman rights Archives
While the episodic game was developed and produced while IO was a subsidiary of Square Enix, the decision to publish the game on Mac just days after IO reports that they own the Hitman rights seems like a pretty obvious pushback from SE While IO has given us what seems to be the definitive word that[...]