Occulus will soon release Asynchronous SpaceWarp 2.0

https://www.reddit.com/r/oculus/comments/9jptp1/asynchronous_spacewarp_20_coming_soon_via_rift/
FD please make sure that you implement this feature in the next update!

https://www.reddit.com/r/oculus/comments/9jptp1/asynchronous_spacewarp_20_coming_soon_via_rift/
ASW 2.0's new tech relies on the game feeding the depth buffer to the Rift drivers, so it will still look like ASW 1.0 for games that don't do this. The good news though is that in Unity this is literally a 1-tick checkbox, and in Unreal, it's on by default! No special development effort required for either engine. For games using custom engines though, it may be a more effort, so those devs might not do it.
FD please make sure that you implement this feature in the next update!