I've just been following the discussions at Thrillnetwork.com and Themeparkreview.com, that's where I'm getting all this info.
It sounds like someone is able to confirm that the track has shown up at dollywood. Blue track w/ tan supports. The only questions now are whether it's a wing-walker or invert, and how it will be themed. Seems like it will be a wing-walker based on the hints that DW has given, but I thought the track had been spotted before and had an invert label code on it. We'll have to wait and see until somebody can get a closer look on this one.
Theming could go any direction, the only clue there is a sky-themed banner that says "the sky is not the limit". Could be bird theme, rocket theme (think steampunk/blackpowder, etc), storm theme, etc. I'm just curious as to their plans to make it fit the park without ruining the charm DW has left. That whole back area of the park has looked pretty sore to me since they carved it out of the hill a couple of years ago. Hopefully this will immerse the area with theming and bring it up to DW/SDC standards.