hmm Bioware is supplying the aurora engine to use in NWN2, they do host a forum on the www,bioware,com site, aside from that Feagus Urquhart (formerly BlackIsle from the IWD series and no small ammount of input to BG) now heads Obsidian who are producing NWN2, Atari has the IP from wizards of the coast and thus are the distributors.
It is wirthwile to note that Obsidian has re-built the Graphics engine part of Aurora from the ground up.
If you wish to know more go
here and follow any links that interest you or try
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