Four races: a pair of non-humanoid aliens, robot, and the thulid, because someone wanted face tentacles so there you go (also eats brains).
Two more classes: the nomad and spellsword. Only up to 5th-level, for now, though there are plenty of talents to push beyond that soft cap and/or try out a variety of builds. Of course you're also encouraged to come up with your own.
High tech weapons, armor, power armor, shield emitters, and some example spacecraft. Also skills that interact with this new stuff.
Some kind of sci-fi/fantasy monsters.
The content presented is new, though intended for gathering in a future sourcebook.