Quotes from the news wire:
I think to a lot of fans, Star Wars is Luke Skywalker story. Unfortunately, the prequels kind of refocused the entire saga on Anakin Skywalker and made it Luke Skywalker story -- which doesn't work as well because Anakin Skywalker's not a sympathetic or engaging character, machete Order includes the bulk of the prequel material... but Luke's position as the narrative center is restored.
Two films of Luke Skywalker story, two films of Anakin's story, then a single film that intertwines and ends both stories. i think Episode VII looks pretty good, at least from the marketing material. It seems pretty clear that JJ Abrams is being very mindful of the desires of fans, which I think is going to be well-received.