I just tried to "unscramble" the "pondorapy", treating it like an anagram, doesn't really bring anything.
Technically I could go into full conspiracy mode and take out the Y, making the closest anagram "pandoor", which is an alternative spelling of "pandour", which was the name of a Croatian fighter in the Austrian army. Dragon trail is based on a real-world region in Croatia, so this could be a hint of extra DT layouts coming.
That's an insane stretch just to hint at something that's already likely, given the expansion of routes on the other original circuits - it was probably one of maybe 2-3 others that could get additional routes added. And on top of that its in a feature video highlighting a car, not specifically GTS.
We're only a few hours away from the update so I don't think there's much more to be discovered/speculated on till then.