I know it's been said before, but now it's really happening. I'd like to have some better basic drawing tools in the terrain editor like smap, grid, curve through points, fill. The modeller should export, do true booleans, add a lathe and extrude curve function. The Render should be faster. The main camera should allow for flat projection and TV as well as computer aspect ratios. I've got lots more but those are my top ones. What's yours?