Bank on it.
The prequels were so dark and serious and lacked any fun whatsoever. I completely expect Star Wars 7 to do a complete 180.
It is becoming a foregone conclusion that the significant cast members from the 4 - 6 will return. And I dont think theyll be taking a back seat to a bunch of youngsters. There will be young cast members but I expect episode 7 to center around the original cast. And it will feel like a reunion. They'll be older, less mobile, grumpier and they will be comic relief. They'll stumble around trying to do the things they used to only to realize they're just too old. IT will be a recurring joke thru the film and it will set up the handoff to 8 and 9 which will feature the kids.
"I'm too old for this, kid"
-Han Solo.
Could be brilliant. Could crash and burn.