In the latest Heroes of the Storm update, there's over 30 changes to an array of Heroes. While there isn't developer commentary on the majority, it seems that Blizzard - now that the Heroes of the Storm team has been reduced - are looking to shake up the meta. Some Heroes received minor tweaks (such as Chen and Mephisto) while the likes of Anub'arak received Talent changes that could significantly open up new builds. Full patch notes here.