Blizzplanet interviewed Ion Hazzikostas at GamesCom during the Press Day (Tuesday) to discuss Patch 7.3 and beyond. Full transcript here.
Jaina is not a dreadlord in World of Warcraft. The dreadlord skin in Heroes of the Storm is not canon.
Antorus Item level 985 and Legendary items up to 1000.
Mythic+ dungeons item level increase to make them relevant.