Sequels are the safety net of Hollywood movie makers, who think they can't "afford" to create new, daring content. I mean, why not cash in on guaranteed movie goers? Those eyes are drawn toward familiarity.
Then again, I'm not the one investing hundreds of gazillions of dollars into making a cinematic extravaganza. Also, I'm going to be a huge hypocrite: I'm super excited about Star Wars. And I'll be hellah sad if it disappoints. Or has Jar Jar. Screw Jar Jar!!!