Vivendi Universal Games has fired 350 employees, mainly from its North American branches, many from Sierra and everyone at Papirus and Impressions Studios. Blizzard has been spared from any changes so far as announced specifically by one of their official press releases.

I guess they have not needed to, considering the fact that many Blizzard programmers have left on their own accord (about a third of Blizzard programmers have left over the past year and a half.)

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Pcpro.co.uk - Source