Might be a bit of venting in this answer
Probably much later since HeO is a rather new title.
They still have so many titles to upgrade and rewrite. IMO it’s a bit naive to plan on a specific title being upgraded if it wasn’t mentioned by Fire or Saint. I’m not referring to you specifically, I know you like to plan a few years ahead. But there are a few people in here that plan to run a specific title “because their favorite titles probably gonna be upgraded next, it’s only logical after all”.
They have at least 40 titles waiting for an upgrade that weren’t mentioned yet. This number doesn’t contain titles like HoM or T$ that were at least mentioned in a way that they are reworking the idea of the title.
We got two titles this year. One upgraded, one brand new (No complaint about the number).
They’re working actively on Seductress, Emperor: The Executive, True Social. Then there’s a Beyond limitless and a True Sell hype thread. Besides that I know they mentioned collecting ideas for HoM, Rich Trader and Seductress Dark, as well as planning more female titles.
Plus some additional new titles that they’ll probably release on the way.
So my guess is that any upgrade on titles like RM, Ascension (as much as I’d like to see this one), IG, Spartan, etc will take time, or luck.