So what is the new "dungeon" thing we getting?

[Juun]

We weren't given a lot of details but I think they will be brand new dungeons entirely and that there will be 3 of them by the end of the expansion.

You can do them with 1-4 players like POTD and the difficulty is scalable. It seems a response to people's request for what wow has with mythic+.

Although it's possible it could just be "unreal" and altered versions of old dungeons, this would probably have been clarified if it was.

M+ is the worst thing in WoW introduced to date if people want that they should go back to WoW and not demand it in this game.