Which one? Sc1 is still a mainstream game in Korea played religiously. Sc2 on the other hand is losing players since it didn’t hook people the same way (impossible to do, people only have one childhood to waste nostalgia on). That’s understandable though since there hasn’t been new content for it for a long time.
And then you find out that a premium mount in WoW made more money than the entirety of Wings of Liberty and you kinda understand why they haven’t made a new one.