I saw on mastodon someone is already doing that, looking at a fork. That person is also a a very good programmer. I hope they get the support they need, I would help a bit financially should the need arise.

I have seen tons of such single developer forks that eventually run out of steam.

By former minor mantainers, not actual developers

Most actual development was done by hundreds of people in the early 1980s by the Massachusetts Institute of Technology

Xorg is not the original one.

X != Xorg. Xorg was a fork since X was mostly abandoned by the original maintainers.