Update: Sierra has assured that Ghosbusters "will not be cancelled", but offered no further details on the title or any of the others believed to be on the chopping block.

Original Story: In the wake of the recently completed Activision Blizzard merger, the company has revealed that only five franchises from Vivendi Games' Sierra portfolio will be making the transition to the newly-formed company's publishing operations.

The titles and franchises confirmed to make the leap include Crash Bandicoot, Spyro the Dragon, Ice Age, Radical Entertainment's Prototype and a yet unannounced title. Those remaining titles formerly slated for publishing deals with Vivendi Games, however, could now be without publishers.

"The only [Vivendi] franchises that Activision Publishing will release are based on Crash Bandicoot, Ice Age and Spyro, as well as Prototype and one other game that has not yet been announced," an Activision Blizzard representative told GameSpot. "We are reviewing our options regarding those titles that we will not be publishing."

The remaining Vivendi Games portfolio includes Double Fine's Brutal Legend, Terminal Reality's and Red Fly's Ghostbusters, A2M's Wet, Starbreeze Studios' Chronicles of Riddick: Assault on Dark Athena, Massive's World in Conflict: Soviet Assault and Swordfish's 50 Cent: Blood on the Sand, among others.

While a majority of those projects stem from independent developers, Activision Blizzard is "exploring options" for internal studios Swordfish Studios and Massive Entertainment, including possible sale or closure.

Though the news appears grim, these titles could theoretically be published under Activision Blizzard's other publishing arms. However, no official word has yet come from the company.