What makes Emacs attractive to me is that it's a programming environment which you can modify on the fly. At least, that's what I have read, I've never actually done it myself.
Visual Studio Code, the editor that I use daily, is based on Javascript (Typescript) but I have yet to see a page by Microsoft explaining to me that I can quickly whip up a script and execute it in my editor. From what I understand you need to create an extension and I think that takes a bit of setup.
A spiritual successor to Emacs could be an extensible editor based on a language which you can interpret on the fly, modifying your environment as you go along. That's what would make Emacs more attractive to me, along with modern keybindings like arrow keys...