Yes I am a Star Wars Fan so couldn't wait to post this when I saw the buzz.
Abrahms who has taken over the Star Wars franchise has apparently insisted that the stars from the previous films, Harrison Ford, Mark Hamill and Carrie Fisher remain the primary focus of his first film instead of, as previously scripted, made secondary characters, focusing on their offspring.
If this is true I think this will help the franchise 'live' on giving it a smoother transition from the previous. Everyone likes familiarity and also the originals are such great characters/actors there is no reason they shouldn't be the stars. It will also give Abrahms the chance to introduce new characters for the next films but in a more subte way. The original cast will be seen to 'open the door' for the new cast so to speak. The next 2 films afterwards will then focus on their children.
More about other cast etc on the link below.
Film News, Star Wars