It's so annoying how people hear some new tech buzz and suddenly everything MUST use it! No idea what it really does, nor how it works, nor what goes into using it, but itz cool! and more FPS! OMG!
Let's just first wait and see how development goes and keep using OpenGL (or if you must DirectX) which can easily do what Vulkan does, is A LOT more documented and real world tested and requires A LOT less coding (= less bugs). Mabye in two or three years when Ember has become more than just some poster and lots of hype, UE will have proper support, supported hardware will be more common and Vulkan has actually been used by other studios as well.
Wow, so you come from DX and you ahven't heard of vulkan ? thats strange but don'
t worry! HLSL is the best shading language out there and there is a crosscompiler for every api out there (including vulkan-which uses spir-v ). If you're already experienced read the spec, don't waste your time with (potentially) outdated and long tutorials