Quote Originally Posted by Greyfrost View Post
There was a dialogue mentioning Doomtrain, but that was very, very vague. Not sure if that qualifies as a hint.
Nah, not Doomtrain. The hint isn't vague at all. It's from the Scenario designer I believe, and says, I paraphrase.:
"Perhaps the next Extreme Primal will be the final boss [of Heavensward]." Meaning The Singularity Reactor Extreme.