4. Corellia
Let's assume the next trilogy stars descendants of the original trilogy's main characters, which makes sense with the family saga to-date. Seeing as how Luke doesn't have a lady love besides his sister, and it would probably take too long to establish a Mara Jade character (from the EU), we can reasonably assume Han and Leia's offsprings are the heroes. Well, Corellia, Han Solo's birthplace, would make a perfect place to raise a kid. It's got a bustling Coruscant feel, but it's a little more laid back and independant. For instance, it and its fellow Five Brothers (system planets) are the only ones in the known universe to have its own planetary repulsors. Meaning, they can just hightail it out of there. Not a bad visual for J.J. Abrams ... Just imagine the lens flares as the planets move past the sun! Also, it once held a rebel base, but its government has the checkered past of working with the Empire through appeasement. This would make for ready-made drama, and it would make the most sense for Han's chosen home.