Without opengl, we won't be able to run wined3d.
Msi also seems like an important gap. In theory, we can cover that, but I have to wonder about the consequences of putting Wine's msi in a WOA system.
It looks like a good base for the rest of Wine to me. It helps that all our sound now goes through mmdevapi, and all our imaging goes through windowscodecs.
Let's hope opengl/msi appear in the final WOA, or can be replaced somehow.