If past is prologue, Activision Blizzard could be getting itself into trouble. The last big acquisition of a mobile game company was done back in 2012 when Zynga purchased OMGPOP for $180 million. Zynga was after the hot mobile game at the time, Draw Something. But Zynga made its purchase at the peak of the game's popularity and the company almost went down the drain as a result.
The difference here is that Candy Crush Saga remains a top ten game, although it is not the juggernaut that it once was. At one point during Candy Crush Saga's meteoric rise to the top, King made so much money from in-app purchases, it stopped accepting ads as a way to garner revenue. Those days might be gone, but Candy Crush Saga and other titles in the series are far from done.
source: ActivisionBlizzard via TechCrunch