Don't take "average" here as an offense here. A good deal of ex-Blizzard employees company simply flopped hard and I could call those endeavors "mediocre". Still... some managed to survive and launch some good games.
But saying they recaptured the old Blizzard magic is too much. Blizzard was a product of its time when most companies were smaller and bolder, and sometimes less professional them, Blizzard was.
If they are lucky they'll launch a good game and we all will be happy about it, but good games abound and I'm not getting hyped about it. Call me if they show something to earn the hype because the pedigree alone not been working.