This being the 30th anniversary year, and a good chunk of time into the license, I think they could realistically have quite a few figures this year from A New Hope. I certainly don't think it's out of the question to see one at Toy Fair, one at Celebration IV, and one at SDCC. In fact, I would be surprised if that didn't happen. Old Ben seems a likely candidate, as well as Tarkin. If they are ready for armor, Vader would be a great choice.
I am most interested in seeing how they can come up with an environment that surpasses the Jabba's throne display for SDCC this year. Maybe they will shift gears and give us a vehicle instead?