After Black Isle shut down, most of the developers went on to found/work at Obsidian Entertainment, some had also gone on to Troika Games from what I remember but that studio shutdown in 2005 due to poor sales of Vampire: The Masqeurade: Bloodlines.
Troika people moved on to Obsidian, Blizzard, InXile (Brian Fargo's company), and I think some even went to gamesas
Some members also founded an Independent studio in Seattle called Doublebear last year.
http://www.doublebearproductions.com/