Looks like Activision is trying to revive the long dormant publisher (which they own along with all their IP). The website has been relaunched and a new Twitter account has been created that tweeted, "Don't call it a comeback."
http://www.escapistmagazine.com/new...ion-Teases-the-Return-of-Sierra-Entertainment
http://www.escapistmagazine.com/new...ion-Teases-the-Return-of-Sierra-Entertainment