Neh. There are plently of movies I would like to see more of, but not necessarily a sequel of. Because in my experience, most sequels are just half-assed extensions on the previous movie in attempt to make as much money as possible. If a movie does well, you can bet your life there's gonna be a sequel, or even a series of sequels (and prequels). I mean, God, just look at DreamWorks, the amount that they milk their movies is ridiculous, not only making sequels, but turning them into TV shows as well. Everyone knows that a good movie always leaves the audience wanting more; but actually giving them more? Well, that's something else entirely.
Anyways, tangent aside, if their was one movie I wanted a sequel for (that didn't already have one), it would be The Lego Movie; but, of course, that's already in the works.
(And despite my distaste for sequels, especially when they are clearly being used for easy money, I'm actually really looking forward to it)