Well, this certainly changes everything... And nothing.
I'm not a huge fan of Disney, but Marvel's certainly not suffering. Episode 7, 8 & 9 could be great... Or could be as disposable as the Prequels. Either way, it's a clear page turn in the Star Wars story.
What won't change are my copies of the OT on VHS. What won't change are my memories of the best film trilogy I've seen (sorry Nolan; you're close but nostalgia edges it). What won't change is the profound influence George Lucas has had on my life as a film-maker and as a person. I know what Star Wars means to me, and I'm happy with that. Besides, more product means more cool stuff for me to photograph... :)
It's going to be interesting!