I'm sure it won't happen, but Disney should consider rebooting Star Wars. The prequels were not fun like the originals, I think it's because of Lucas' decision to make Darth Vader Luke's father. He obviously was not his father in the original Star Wars, but Lucas changed it in Empire Strikes Back and tried to explain it in Jedi, making Obi Wan look like a fool.
Vader can claim to be Luke's father, like the devil that deceives, but is proven untrue in ROTJ. Also I heard that originally Han Solo was supposed to die. If he died at the end of ROTJ, as a hero saving the rebellion, it would have been recompense for his years as a scoundrel, and it would have made the end of the second trilogy melancholy, which would be a good set up for the final trilogy.
The storyline of Star Wars is very piecemeal. The problem with making the prequels after the middle trilogy was that movie special effects were better, so it looked like the earlier time of the prequels was more technologically advanced than the later time of the middle trilogy. Also the action in the prequels was more extreme, compare when Obi Wan and Anakin are running through the rolling space ship in the prequels vs the low tech garbage compactor in Star Wars. If you reboot the whole thing, you can start out with a lower amount of action, then build it up in the middle.
Also, the Emperor building a new Death Star in ROTJ was lame, it was just a rehash of the original. The rebel fighters should have attacked the Emperor's city with all the action of flying through the infrastructure of the buildings. Actually when I originally saw the previews of ROTJ in the theaters, I thought that they were flying through the Emperor's city, and was disappointed when it was just another Death Star. And the Ewok planet should be replaced by the Wookiees, like Lucas' original idea.
I'm not sure if CGI technology is at a point where they can make a truly lifelike human, but that would be the answer to recreating characters like Luke etc. and aging them appropriately through the series.
If they are going to expand the Star Wars universe, they need to start with a firm foundation, and the films they have, especially the prequels, aren't solid enough.