BG MMORPG? Meh. BG is entirely centered around Bhaal. Seems way too small for an MMO. And D&D mmo already exists as mentioned above.
Ngl though a D&D RTS would be funny to see. Like... with all the mages sleep mechanics and magic weapons there could be a few interesting things to do to distinguish such a game from other RTS.
Spellforce could be an inspiration to some degree.
