MS: Apple is not comfortable working under Khronos IP framework, because of dispute between Apple Legal & Khronos which is private. Can’t talk about the substance of this dispute. Can’t make any statement for Apple to agree to Khronos IP framework. So we’re discussing, what if we don’t fork? We can’t say whether we’re (Apple) happy with that.
I expect the chances of me winning the lottery are higher then Apple adding Vulkan support. Apple is a staunch believer in fragmenting the ecosystem to lock in their developers and by extension their users.