For the most part, animation is controlled by a few very loud voices in the industry, and there is little room for people to experiment with it, particularly at the studio level.
That's a shame. Because animation is a medium with near-limitless storytelling potential, and year after year, film after film, we essentially see the same types of stories with the same types of characters and the same sort of authorial voice, an echo chamber in which you either tell stories for children, or you don't tell stories. And you tell them in a very familiar way, so as not to freak anybody out.
Sure, we've got Pixar, and I have been vocal about how much I admire their work, but I don't think that should be the only strong voice out there in animation. Disney, Dreamworks, Aardman... they've all contributed strong films to the mix, but that's still just a very narrow range of stories being told.
What we don't see much of are filmmakers who have strong voices who decide to just make an animated film. Robert Zemeckis is a rare example, and he sort of took the all-or-nothing route, building an infrastructure and working with the same technology from film to film, polishing his technique, experimenting. Seeing Spielberg and Jackson jump into "Tintin" together is a thrill, and I hope they crush it. I hope they make these movies that are basically like jumping into the world that Herge created.