Actually Jade also has Bec's powers (as the comic's creator has stated on his tumblr) so she not only has her Hero of Space powers but is omnipotent as well. I also suppose that if they ended up restoring Earth in the new universe they could be summoned. You'd probably have to do some handwaving to get it to work. On another note, I'm not sure if this has been asked or not but is there any idea about what the class abilities of the canon non-standard classes like Savior and Avenger would be? They are never actually stated so I was wondering if someone had come up with an idea or not?