The Avengers wasn't exactly a bad flick and that happened after Disney acquired Marvel. It could have been way more Disney-esque.
Loved the orginal SW films, thought the newer ones were decent enough. Would love to see a continuation of the series. Don't think anyone is likely to take on that project without paying serious attention to the complaints about the prequels.
Given that Lucas is 68, Ep7 might be the last SW film he touches - that, plus the combined weight of Disney / Marvel / Pixar? I think it could be pretty awesome.
Or they might hire the entire cast of Twilight for the lead roles and screw it beyond repair.
Will be fun to watch though. :)