It may not have been the a big preview (and "early next year" for the first issue may be a little optimistic) but Hollywood Reporter has run a series of sketches by Frank Quitely for the upcoming Jupiter's Children series with Mark Millar from Image Comics, a number of which we haven't seen before - or Millar's character descriptions that accompany them, below... no names of powers yet though.
"These guys are the kids of the old couple. They're both in their twenties and completely live in the shadows of their perfect parents. I like the idea of exploring what it would be like to grow up as the kids of the two most famous and beloved people on the planet. This side of things has a very Postcards From The Edge feel and there's enormous tension between them all"
The Man in the Parka and The Lady In Red
Brother and sister wannabees... "They'll do anything to get on the cover of the magazines and only too happy to spread rumours and cause trouble as rumblings in the community start to spread,"
The Oldest Living Superhero<
"He's had his powers since he discovered a mysterious island back in the Great Depression, but he's a curiosity now. His altruistic ideals, like his costume, are just out of synch with all the young heroes."
"The old hero's wife and they've had this perfect marriage for almost 80 years.They're the last two superheroes with secret identities. They're old school and we love them for it, but they don't understand their children."
The Hero's Brother
"He isn't as strong or as handsome as his famous sibling and lacks charisma, but he's thoughtful and very aware of his legacy as he hits old age. He's looking around at the financial crash and wondering if he can help in ways other than rescuing kittens from trees and all those nice things superheroes do."
The Cool Guy
"This guy is our Han Solo. He's the son of the biggest super-villain in the world and running drugs in from off-world. Incredibly funny, cool and likeable and, to make things quite complicated, in a secret relationship with the daughter of the world's greatest hero."