Stuff like synching and decoupling? Got to face the fact that NWN is Cryptic's new baby and soon-to-be flagship of which has the newer codebase.
Whatever engine tweaks done there will trickle down to us in the form of patches with less descriptive release notes. No big deal for us as it's just Cryptic doing work on the same engine they use for all their games.
So no DnD Doomsday inbound...
Unless we get hit with ninjaed 4th Edition rulesets. If so, then maybe we will have the STO NGE?
