Because, in any medium, when we see artists who we consider to be extremely talented, we want to see their own visions and creations. Eventually you want to see a great director make a movie out on their own. Eventually you want to see a great studio work on their own IP. Retro aren't some new kid on the block. They created a masterpiece in a lot of people's eyes 10 years ago and, in those same eyes, paid their dues. Many of us would like to see what they can do when they create a completely new world on their own, because by all accounts, they have the technical and artistic staff to pull off something incredible.