Blizzard has added a new meta-achievement for Patch 10.1+ content in Patch 10.1.7. While there are no rewards tied to it just yet, you can start working on it right now.
It’s called Neltharion’s Legacy and includes the following requirements:
Aberrus, the Shadowed Crucible – Defeat all bosses regardless of difficulty.
Dawn of the Infinite: Galakrond’s Fall – Defeat Iridikron in Dawn of the Infinite.
Dawn of the Infinite: Murozond’s Rise – Defeat Chrono-Lord Deios in Dawn of the Infinite.
Legend of the Multiverse – Reach the “Legend of the Multiverse” friendship rank with Soridormi.
Nothing Stops the Research – Defeat the Sundered Flame leader Captain Reykal during either of the Researchers Under Fire events.
Que Zara(lek), Zara(lek) – Zaralek Cavern meta-achievement.
Still Standing in the Fire – Get killed by Fyrakk.
The Inquisitive – Finish the first day’s secrets during the Secrets of Azeroth event.
Through the Ashes and Flames – Complete the quest “Suffusion Camp.”
I assume the achievement will be part of something similar to Shadowlands’ Back from the Beyond, which was eventually removed when Dragonflight released.
