Because this has been doing the rounds, I was ready for what was coming. Aipok's health suddenly drops to 11.1k. He wades into the skeletons, as you would, with the confidence of a level 90 in a level 40-ish dungeon, and he dies. Only then, looking through his combat log, does he realize that something is awry. On ressing, his health is even lower, at 5.9k. He opens up his character pane, and all his gear has been downscaled to ilvl 43. His character attributes appear to have been downscaled, too.
Now, this has Aipok in a strange position. Has he just happened upon a very specific and weird bug? Is this an accidental hop into an unrevealed new feature for 6.0? Could players entering old content be downscaled to match it? Or, could this all be an elaborate hoax? Personally, I want to believe, so I'm going to choose to. What's more, Blizzard devs have talked before about this tech being completed. As long as this was optional, and perhaps even if it wasn't, I'd love this. It'd refresh old content and make it a challenge again. And, if you could earn upscaled XP while downscaled, a fun way to reuse old content to level.
But again, remember, this is not an official announcement, or an endorsement, or anything from Blizzard. It's one video of one weird dungeon. It could be a hoax, it could be a bug, it could be nothing at all. I'm excited, though. Are you? And what could it reward?