The Hawaii desktop has had a very exciting year and has been usable with Wayland's Weston since April. It's running well and might be found in Fedora 22. As part of the Hawaii desktop is also the Green Island compositor for Wayland but that hasn't been as fruitful as just running on Weston.
Embedded below is the new user-recorded video showing off Hawaii running on Wayland. For those wanting more details on the project visit its GitHub project page.