Sega at least gave a reason why it they were holding it and at least had the option in the game's settings there to hint that there is gonna be DX11 coming to that game soon.
http://www.pcgamer.com/2011/03/11/shogun-2-wont-have-directx-11-support-at-launch/
Crytech was just like "The game isn't gonna have DX11 at launch."....I still haven't heard the reason why just assumptions. And now we got this guy wording stuff wrong (hopefully) saying "No patch was ever confirmed" -Tom Orry for DX11. Maybe he was just talking about that day, I hope so.