I tried to set up a partner account for driver signing last year (as a business entity) and it already seemed basically impossible. I think they're getting ready to just simply not allow it at all.

This is stupid. If Microsoft wants people to stop writing kernel drivers, that's potentially doable (we just need sufficient user mode driver equivalents...) but not doing that and also shortening the list of who can sign kernel drivers down to some elite group of grandfathered companies and individuals is the worst possible outcome.

But at this point I almost wish they didn't fix it, just to drive home the point harder to users how little they really own their computer and OS anymore.