Gold/Yellow structure in new ARR Video...

[NarikoStar]

Although this doesn't answer the question 'what' it is necessarily wasn't there a Dev/interview response about players having to do a quest line in discover the origin of these structures popping up over Eorzea?

I thought it was referenced again in the original roadmap- I also recall seeing a forum post about 2 weeks before the game's final save (around beginning/mid October 2012) of a player asking if the dev's had forgotten about this but never received a response.

I'm trying to find the source where I remember seeing this response as well as the player's thread asking about it- I thought it was in a German or French interview back when Yoshida first started passing out 2.0 information to the community sites around the globe.
I'll see if I can dig a bit more-

EDIT:
Found the roadmap reference- still looking for the possible interview reference and the original forum that had the discussion in it I know the general direction of the forum post was asking the dev's why we didn't get this in 1.0- and if we /did/ what was it supposed to be since this geological structure never appeared. But I'm unsure if the other thread had any productive information regarding 'what' this is.