"Too sure of themselves, they are. Even the older, more experienced ones"
Here we go. According to some rumors, Luke Skywalker will have no offspring, which seems to be an acceptable approach because like Obi-Wan said "if Anakin Skywalker were to have any offspring, they would be a threat to him". Another rumor stated that the Jedi are still extinct, even after the downfall of the oppressive Galactic Empire, created by the most satanic figures of the Star Wars universe: the Sith. The Jedi Order could be rebuilt in one way or another since they combat crime and political chaos.
There will be new leading characters in the long fabled sequel trilogy and it won't be Luke Skywalker, but strangely, a female lead, the daughter of Han and Leia Solo. One whom I'm pretty sure will be named Jaina Solo, as we knew her from the expanded universe.
Lastly, there is one more rumor I don't want coming true. Luke Skywalker will turn to the dark side, like his father. This will ruin Luke's good character since he redeemed his father from the dark side. On top of that, Luke saves the day, but only with the use of the dark side, which explains the "bad way". Should that come to pass, I fear J.J. Abrahms will have dishonored Star Wars even more than Anakin Skywalker abandoning his destiny as the chosen one.