Problem is that we will probably mostly just get half-assed Dx12 games. One or two proper Vulkan games. Sucks.
On Topic: New Deus Ex might have been interesting from a tech standpoint if it had been Dx12. You can't really "patch" in Dx12. Game needs to be made ground up for it. Mankind Divided sure looks like a Dx11 game with some Dx12 bells and whistles taped on to it. Shame on the publisher, shame on AMD and Nvidia. I suspect Ms has had a fat finger in it too, but probably it is the publisher who's the main villain. As per usual. Square Enix never fails to disappoint. Wanna bet when they'll announce DLC for the game? Couple of weeks?