One thing that seems to be missing is some sort of guideline for new racial traits not covered in the playtest document. As soon I'll be using it and eventually the ARG when it gets released to build races for my campaign setting, some of the traits these races have aren't covered well in the playtest document. It would be of considerable use if there were a sidebar at least covering this, as likely, gamemasters and players will attempt to create races with abilities outside the available ones.
Take a subrace of elves I'm working on. While they share most of the same traits as standard elves (only a minor change in ability modifiers), they are, for all intents and purposes, immortal (the kind where they don't age beyond a certain point only). I originally defined this as Ageless: they are immune to aging effects. Unfortunately, none of the racial abilities cover this, really.
Just making a friendly suggestion to the writers of the book that could be very handy! I'll just wing it in the meanwhile.
