I have some Elder Dragon and Heart of Thorn related questions
It's a given that from most perspectives that Zhaitan, Mordremoth, Jormag and Kralkatorrik are evil as they have manipulated and actively corrupted sentient beings but is Primordus evil? Have we ever seen him corrupt a sentient being? Is he avoiding it. His movement have disrupted various races but given his size and nature he really couldn't avoid it?
Regarding Mordremoth; was he in the Heart of Maguuma because it's a jungle or was it a jungle because he was there? The ruins that litter the area from the Silverwastes to deep in the Heart of Maguuma look like there were built before it became a jungle.
There are magical pylons around Dragon's Stand. Were those part of another city or just outposts of Tarir? Could the Exalted power them up? It would be interesting if the Asura copied the pylons as protection for the main cities.