An interesting spell added in Patch 10.2 reveals the future of dragon aspects and hints at how the patch will end. This post contains spoilers.
The spell in question is The Great Dragons with the following tooltip:
Alexstrasza, Kalecgos, Vyranoth, Ebyssian, Nozdormu, and Merithra arrive to receive the blessing of Amirdrassil.
It appears at the end of the raid, the new World Tree will manifest into Azeroth, granting all dragon aspects their power back. It’s also interesting to see Vyranoth joining the fray.
At the end of Cataclysm, the dragon aspects lost their powers and became mortal again.
We’ve datamined some interesting models of the aspects with glowing eyes which suggests they will receive their powers back.
For example, here’s Merithra in her new dragon form without her eyes glowing.
Here we have Merithra with this strange “Death Knight eye glow”.