i wish the creator's of lil big planet and minecraft would get together for an epic update to minecraft featuring circles and hd graphics! hell everything from lil big planet added into the world of minecraft would be dope.
Though I'm amused by the concept, it would never happen. For one, minecraft is based in java, and it's specific models not only don't use round shapes but CAN'T. The engine isn't designed for those shapes and I don't think it'd even be possible. To do this they would have to rebuild the entire game from the ground up in a different engine. The OTHER break down is the way minecraft reads and renders blocks is not something any other game is capable of doing. So it just won't happen.
korgly