In reply to Danny Brown.

The Classic Editor end-of-life date isn't set in stone and can be extended based on usage stats. This has been noted many times. The Classic Editor plugin isn't the only game in town either. As long as there is a large enough market, some smart developer will use that opportunity to build for that market.

The greatest thing about WordPress is the Plugin API. It allows developers to essentially turn WordPress into anything they want it to be by hooking in and changing how the platform works.