Well not quite, but Karthik has nevertheless released a new level which is called Dark Fate 2. It is small hellish map which started its life as a speedmapping level. In his own words:
However I picked it up in early 2008 and worked on it over a couple of weekends, and made it look nice. Due to lack of a better title, I named it Dark Fate 2.
Enough ramblings, go here to check out the rest!