iLok rumored to be WoA compatible later this year.
So many others that I use are uncertain or just plain incompatible (e.g., Toontracks, Izotope, IK Multimedia, Musiclabs, Nektar, TC Helicon, UJam).
Other big players not on board with WoA as of now (including “No official announcement”) include : Celemony, Kontakt Player, Slate Digital, Slate Audio, Sonarworks.
I’d think these companies would feel the pressure of a deadline, with more and more W10 users switching over to W11.
I just got a my first W11 computer, Microsoft Surface 11, for mainly non-musical use, 32GB RAM, 1 TB hard drive, Snapdragon X 12 core X1E 80100, 3.4 GHz. I hope one day it’ll be pretty good for portable DAW work. It’s nice to know that even now I can use Cubase Pro and at least a few plug ins on it.