Forget it. That guy has no clue how exponentially more complex a fully 3D game world is and why therefore a few features of the old 16 bit era are nearly impossible to do today.
Impossible? Then why are there 3D MMORPGs out there with most of them?
SWG had a lot even.
SWTOR is even simplified from Everquest 1 in many ways, and that was the first real 3D MMORPG.