Well, I think so, Moritz should know that better, but when Ogre3D gets integrated in the game, wich is one of the TODOs for next version, is easier to simply remove the sail elements in the screen and replaces them with, lets say a ship in a harbour, or whatever 3D meshes but always with some 2D icons in the HUD or with a 2D frame like the red one you did..Are you saying that the GUI will become 3D?
Nothing is sure at this moment anyway.
