User blog comment:FishTank/Refining Your Editing Experiences/@comment-39804935-20200423182843/@comment-24006128-20200423183309

By style, do you mean an old editor or source editing?

The former is something we're not bringing forward because managing the maintenance for a bunch of different editors when we can build the functionality all onto one editor instead is not a good use of resources.

The latter is an option we extend to users personally, but we can investigate a wiki-level option for admins to enable. No promises!