Gee, this sounds encouraging
From USA Today:
"George Lucas is clearly concerned that Indiana Jones fans may have built up unrealistic expectations for his upcoming Indiana Jones and the Kingdom of the Crystal Skull. "When you do a movie like this, a sequel that's very, very anticipated, people anticipate ultimately that it's going to be the Second Coming," Lucas told USA Today. "And it's not. It's just a movie. Just like the other movies. You probably have fond memories of the other movies. But if you went back and looked at them, they might not hold up the same way your memory holds up." In fact, he added, when expectations rise to such heights, "You're not going to get a lot of accolades. ... All you can do is lose. Don't get your hopes up."
He probably just said that because he knows he SHOULD have said that about the Star Wars prequels and is afraid he's gonna piss off even more people.