It does say "alternate scenes". But, for example there is the ESB alternate Han-Leia Bespin scene. And lots of other stuff like that in the PT because they refilmed half that shit after principle photog. And like they did with Blade Runner, they might just have been including alternate unseen angles on familiar scenes. But "alternate scenes" is slightly tantalizing. Could they be finally giving us the alternate "original scenes" and sort of acknowledging that if fans want to edit together their own original version then that's fine but it will not be officially endorsed?
I guess we will see. Probably I am just being optimistic.