There was a very short rumor that a US version of the next generation TC was going to be made in the Hermosillo, Mexico plant, where the Bronco and Maverick are currently manufactured I think?
Sounds like that plant is at capacity with those two wildly popular vehicles, which are likely higher-margin than small commercial vans. Which is really the only explanation that makes sense. So we sadly don't get the new version.
Some of the dealers have been weird about the TC all along. The dealer I ordered mine from is less than a mile from my house, does a huge commercial business in F-series, big Transits, Police Interceptors, etc but has never stocked the TC vans or wagons.