Tequatl is an undead dragon, a lieutenant and champion of Zhaitan. Which begs the question:
Why not a new dragon, a champion of an Elder Dragon as yet unseen? A precursor, if you will, of things to come.
Anet may have forgotten about the other Elder Dragons, but I haven’t.
So, regardless of whether the revamp works or not, I’m calling this yet another missed opportunity in a game full of missed opportunities.