The latest rumor is about Episode VII's protagonists. People are saying that the protagonists will be Leia and Han's twin children, Jaina and Jacen Solo. A casting notice has apparently surfaced with this information:
Two 17 year old twins, a girl and a boy, are trained by their uncle Luke to be the greatest Jedi’s in the galaxy. Problems arise when the male twin turns to the dark side.
Jaina Solo – Female, 17 years old, lead. – Jacen’s twin sister, one of the greatest Jedi’s in the galaxy, trained by her uncle Luke Skywalker
Jacen Solo – Male, 17 years old, lead – Jaina’s twin brother, one of the greatest Jedi’s in the world. A loner who is constantly struggling with the idea of what’s right and what’s wrong. Starts to turn to the dark side. Full of conviction that what he is doing is the “right thing”. Will eventually become Darth Caedus.
If this is true it would explain why initial rumors of Chloe Moretz being considered for a role were surfacing. This also would allow Carrie Fisher, Harrison Ford, and Mark Hamill to all return and actually be relevant to the plot.
HOWEVER... these characters are in the expanded universe storyline and it was previously reported that the EU would not be the basis for Star Wars Episode VII. I also don't see why they would include that much info on a casting call. My consensus is this is probably fake. Sorry guys.