They have a deal with Kodansha the publisher of the manga.I can not get a link to the press release tho.But massively says the press release says...
"will be based on the award-winning series Ghost in the Shell: STAND ALONE COMPLEX, Ghost in the Shell: S.A.C. 2nd GIG, and Ghost in the Shell: Solid State Society."
I belive it could be done well it be a intresting mmorpg.I did like their http://vindictus.nexon.net/
but it just wasnt enuff to keep me as a player.Had good controls an intresing combat which with that grafic engine would be enuff as a skeleton for the new mmorpg.