PS2, as a console, has lasted well and far longer than 2 years. XI still runs on it, just that Square stopped releasing the disks for it outside of Japan with Adoulin. Either way, there will likely be no graphical enhancements for the console version because they're pretty well optimized for their respective platforms. The only reason there's a DirectX11 version being released is because of PC's ever changing hardware between users, often between one user's protean build. DirectX is a gateway between Windows and the hardware which it's on.