PS:T's graphics haven't held up too badly, no...
On the NWN2 module, IIRC they're creaking toward a demo release. Or were. They already released a kind of pre-demo... thing. It came in about 15 parts, took ages to load, had missing textures and not much of a plot. It's a lot more of a free-roaming kind of thing than the original from what I recall.
I wrote some more detailed impressions on it in this thread
closer to when I tried it, though, so it may be more informative. Somewhat inevitably, I ended up doing some comparisons with the original so there's a couple of spoilers if you were hoping to go into Torment
blind, and some general stuff on the Planescape-i-verse which may not make sense without some prior reading on the setting.