I would much much rather see a reboot of the MOO concepts (persistent object-oriented world, global time).
I know the existing LambdaMOO core and server are still being maintained, and web-ified, but even though I am something of a dissenter from the whole Rust trend, I'm very interested in this, which is going about it IMO the right way:
MOO was a good time.
ToastStunt is an actively developed fork of Stunt which is a fork of LambdaMOO. It's extended a lot of what LambdaMOO offered via patches, as well as adding a lot of new and much needed stuff. Active Discord community as well. And several large MOOs are running it instead of LambdaMOO these days.