And I have a couple ideas for a couple custom classes will there be custom skills?
Sort of. Custom skills will come in a few flavors, but will essentially be a class feature. For instance, if you're a Pegasus Rider you would start with a "Mounted Combat" skill that would let you fight from horseback. This would be significant in the sense that you could dismount and be no less effective, but each skill should be a general feature of the class that makes the class stand out. Pending approval, of course, can't have skills that break the game.