I don't know that I'd say new aliens. It looks like it is his Alien Force aliens, including the one introduced in Alien Swarm, with the ability to evolve them to their highest form. I actually was thinking about starting the talkback for this since I did most of the original Ben 10 series, but you beat me to it. I hope no one shoots me for this, but I'm actually looking forward to this premieres potential more than Generator Rex or the beginning of the Clone Wars season finale. The idea of Ben finally being revealed to the world is a concept which will be gold or easily the most foolish move in entertainment history. I guess we'll find out in 18+ hours.