Aw, well thanks! Good to hear.
As far as adding more, it's important to manage scope on these things. A lot of stuff isn't carried over by design, because it makes balance and managing various things overcomplicated. I decided on 3, for example, to just stop scaling Mezz's level every game because the games aren't really ABOUT that and balance rapidly becomes over-complicated. I'll also usually have a particular special skill, and battlesex mechanics for each given game, and not carry them over so each has room to breathe on its own.