No need to wait; HTTP got a similar full overhaul across several RFCs. Read all about it from one of the editors:

- https://www.mnot.net/blog/2022/06/06/http-core

- https://www.mnot.net/blog/2022/06/08/http-extensions

That happened already, no? https://www.mnot.net/blog/2014/06/07/rfc2616_is_dead

This[1] might be what you're looking for.

[1]: https://www.mnot.net/blog/2022/06/06/http-core