Lanefan
Victoria Rules
I did away with demi-human level limits some time ago, thus no bumping-down required..
Now that's an interesting situation...coming back as a race that has a level limit that you now exceed. Given what you said in the obscure rules thread, I assume (prepared to be wrong) you'd bump them down to the maximum level, Lanefan, but I wonder how most people would rule on it.

There's still some species-class combinations that can't and don't exist e.g. Dwarven Mages, but if you can be something you can potentially advance in it as far as you like...or to the ceiling, if the class itself has a hard cap e.g. Assassins only go to 15.