Overwatch's Zarya is going to make a splash in Heroes of the Storm
Heroes of the Storm is an All-Star meetup of Blizzard characters from just about every moment in the company's over 20+ year history. I mean, it literally was called "Blizzard All-Stars" at one point, making its journey from a StarCraft mod into a fully-fledged MOBA.
With just Tracer representing the Overwatch side of things for months, it was more like a guest appearance than a real representation. But now that Zarya has joined up, it's a party.