I share your wish. Emacs, as wonderful as it is, has accumulated a lot of cruft over the decades and would benefit immensely from a rewrite. A "Neo-Emacs" could be multithreaded from the ground up and drop support for archaic platforms. The rewrite could even be in Rust to attract younger developers.
There would be no point to writing emacs in a language that can’t be developed interactively in a repl. Emacs being written in lisp is an essential quality.
