Very good news for the kickstarter project, but sad news about the updated Baldur's Gate. For some reason I thought it came out last week or so.
And the Planescape plot is amazing, but to be honest I do not think I could go back and play that (or baldur's gate) as while the story was great - it was a very dated game that lacks a lot of the nice little things of today. It's like fighting against the game to enjoy it. Though if you can get over the slow pace, inventory management, they're all very nice games.
I thought Baldur's gate was okay - but Baldur's gate 2 was really amazing. Planescape has fantastic writing and very in-depth dialogue which can solve most of the quests through. They're all on the same engine, which as I said did not age gracefully - but if you can get over that they're fantastic games.
Edit: It is possible there are some mods that help with the engine's age, I've never really checked though. One to speed up walking speed/combat would be pretty essential, you can always pause to issue commands.