> Very honestly, part of the reason I don't bother with any new "LaTeX reimagined" projects is because either (a) they are written by LaTeX nonbelievers who don't understand the complexity of beautiful typesetting, or (b) I don't want to learn another markup+ language or mental model. The latter is increasingly annoying to me.

Then you have to try TeXmacs http://www.texmacs.org/. It is completely independent from LaTeX and TeX and has - beautiful typesetting (better than LaTeX) - it is fully WYSYWYG, so you don't have to learn a new markup language - yet it affords better document control than LaTeX