While I wouldn't personally get my hopes too high, NowGamer reports that, in his interview on Play Issue 205, Obsidian CEO Feargus Urquhart touched on the possibility to return to the highly acclaimed Black Isle RPG for a sequel.
“I remember right after finishing Planescape: Torment I spoke to Chris Avellone [Obsidian creative director] and asked what he wanted to do, and he was like, ‘I don’t wanna do a sequel!’ We haven’t talked about it in ten years, but it might be different now. But a lot of revisiting old games is about saying, ‘okay, that worked in 1999, what would work now?’ And how would you do it again?”
“We’d have to think a lot about it, because it would have to be done right, otherwise the fans of the original would be pissed off and new people wouldn’t get it. That would be terrible.”