The rumor/leak definitely seems to be true, and the lead definitely seems to be the girl.
Look at the lightsaber she's holding in the art. It's Anakin's, without a doubt. In the rumored leak, the leads found the hand of Luke Skywalker from ESB--Which was carrying the same lightsaber. Not to mention that Abrams outright confirmed the leak was correct by telling us that Han Solo would be leading an expedition to find the missing Luke.
The leak also said the leads were on a desert planet that was not Tatooine, I'm inclined to believe its correct.
As for the villain, it seems like someone new. And I for one am curious to see where this newbie is from, as surely he's not from Bane's lineage.