Not entirely sure if you're looking specifically for New Khazan info or if that's just guiding your search for sci-fi based T&T. I don't recall much being posted about New Khazan, itself. The setting has come up here-and-there but other than passing comments, that's all I seem to remember. It's published by Peryton Press.
I'd recommend creating your own thread on the topic so you can garner more specific posts. The Introduction thread probably isn't going to catch much attention from the folks who may have more details on the topic.
I'll have the deep-fried battered pixie with balrog dipping sauce and a Hobgoblin ale.