PRIME, the DRI2 offloading implementation
, is beginning to be brought up under Wayland.
There isn't any major new patch-set to share today regarding PRIME support for Wayland, but a new video has been posted to YouTube that illustrates the experimental PRIME support on Wayland.
In this test Wayland PRIME scenario, an Intel and AMD GPU were being used while the Intel card was powering the display with the Radeon GPU handling all of the rendering. The PRIME Wayland experiment video was recorded by Axel Davy and is embedded below for your convenience.