While exploring Stormwind to check for further updates on the odd new portal, I discovered a smaller addition. An “Easter Egg” involving an new NPC named “Archmage Nakada <Master of Spells>” giving a Harry Potter-esque magic lesson to some “Junior Mages”.
Upon further research, I think this might be a tribute to Blizzard’s former Senior Software Engineer, Ron Nakada, who passed away this April. If so, it’s a very touching tribute. They easily could have just made another NPC, but his students and interactions with the player character will make Nakada a far more memorable addition to Stormwind.