As Overclock3D reports, these engine updates will make it easier for game developers to add these features to future games:
These updates will allow CryEngine users to develop games with Vulkan support with ease and make DirectX 12 Multi-GPU much easier to implement into future games. Hopefully, other major game engines like Unreal Engine 4 and Unity will follow suit soon.
Adding this support at a game engine level will allow developers to make use of these new APIs and features with less in depth coding, which will allow developers to focus on different tasks.