Naturally everyone around the globe that contributes to LLVM will gladly contribute the rewritten version as well.
Also, there's some C compiler in Rust, enough to build some crates.
I expect migrating my MUTT setup against isync/mbsync with some Golang written MUA targeting my maildir folder. I will lose some speed but I'm not at mail 24/7 in the netbook and Slashem doesn't demand a lot for gaming. Oh, and S9 Scheme and Klong for sure they work with very little, same with MupDF, sxiv for images and MPV. But, as I said, batch-mode communications will be mandatory on that device. Download, upload, disconnect. Every answer to discussion threads will be done offline.
AERC as a mail client it's written in Go and it's supports Maildir, so that's it.
Also, if someone created some SLRN fork rewritten in Go it would work in the exact same way. Slrnpull to fetch, some Go based reader pointing to the caché folder. Secure and not as slow as anyone would think.
Given how many vulns are discovered maybe even pledge/unveil under OpenBSD won't be enough. Call me crazy, but if all the OBSD people migrated to Redox OS keeping the MIT license it could be a crazy move and maybe a surreal end to the BSD Unix mythos, but it might be a much needed evolution, kinda like plan9/9front was against the old plain Unix philosphy. Evolve or die.
This kind of arguments is what gives raise to the Rust Evangelism Strike Force memes.
In some hypothetical LLM-free world where Rust is displacing C++, hiring managers will still consider C++ experience a strong signal. As is, see you at the bread lines, comrade.