Directx is an API used by the renderer. There's nothing to stop SOE from adding a DirectX 11 renderer alongside their DirectX 9 renderer (like adding an OpenGL renderer). The main issues faced by SOE are: 1.) That the added PS 5.0 shader types etc. need to have actually have features that use them. 2.) PS4 has a weaker CPU (8*1.6Ghz AMD cores) than most recent systems that play PS2, as well as a fairly weak GPU I imagine. PCs won't need too much optimisation beyond PS4 requirements - especially when SOE optimises CPU bound Panetside to run on the PS4. I think what you and that survey are missing is probably an assumption SOE are purely sticking with DirectX 9 because of (existing or potential) XP users and some laptop users; DirectX 9 isn't physically stopping them from adding DirectX 11 - the amount of work and new features to justify it might well be, who knows. (Unless their recent launches in China/Russia meant a different spectrum of target hardware). I'd love to see compute shaders and what not be used to partly procedurally generate details and so forth, but those are new features. However, this is the wrong thread and the wrong forum for DirectX 11 suggestions. General discussion would be more apt.