Changeling is a complete otome game and we have no major plans for any changes - especially not for character customisation, which was simply never on the radar as a feature for this game and is not feasible due to the sheer amount of new artwork and rewriting of scenes that would need to be done. It's just feasible.
If you're looking for some awesome LGBTQ+ romance games and developers to support, off the top of my head I know there are these:
Andromeda Six - a really great science fiction game
When the Night Comes, a cool fantasy project, Errant Kingdom
A Foretold Affair
The Pretender's Guild
Hustle Cat
Royal Alchemist
I think the game "Belong" as well.
I hope this helps!
~Esh