I don't think so. The past months concentrated on people that like the game as is, more or less. So a) of my above post.
There is in my opinion a large(r) crowd to be convinced by making switching at age transition optional (group b), and use the Humankind model that allows to keep your civ. Which is far away from what you want (no modern civs in antiquity, eras persist), but also hasn't happened yet. I assume it is in the works in some form or the other, but it hasn't surfaced in these past months.