Gary Frank, the artist on Action Comics starting with the storyline "Superman and the Legion of Super-Heroes" (Action #858), has a sketchbook up on Wizard Universe with an article and commentary by Geoff Johns:
And according to Johns, the finish line is nowhere in sight. “He’ll be on for good,” says the writer, who previously worked with Frank on Avengers [Vol. 3] #61-#62. “We’re going for very classic stories in Action with modern interpretations. Our first arc is called ‘Superman and the Legion of Super-Heroes.’ It spins out of the JSA/JLA crossover, but it’s really a story that stands on its own. It’s Superman finding out what’s happened to the Legion.”
Dawnstar gets a makeover (click to enlarge):
Though it’s not the classic design, look for the Legion’s resident winged warrior to show up in Frank’s run on Action.
“Dawnstar, as she’ll appear, will have gone through some stuff,” teases Frank. “I wanted the costume to reflect that and be a little less cute. I also wanted to close up some of the holes and make it look like a more serious piece of work-wear. She is supposed to have a Native American look, so I wanted to emphasize those strong, proud features. We sometimes have a tendency to equate beauty in comics with things like a button nose and big, blue eyes, but if you are prepared to adjust your approach, you can move away from that and come up with something at least as beautiful and a lot more interesting.”