need to find source of information

[Wildsprite]

the issue is that it was stated either by Yoshi-P himself or one of the other devs during a live event that the Au Ra have no relation to the Dravanian Horde. I am out to figure out which event then I can try to find the source itself. or someone else could provide the source. I'm not that picky.
even better would be if one of the community team were to confirm or deny(this would make me a bit sad but I'll admit I'm wrong and move on if they do deny it) it.