Have you seen any pictures of the slant back SUV with the back window open?
The smelly hockey bag video...One of the videos of the square back just confused the issue. They opened the tailgate then the window, then closed the tailgate before the window if I recall correctly. The only conclusion to be drawn was that it was non-final hardware, and we don't know which piece is on the outside.

Yes it opens the Slate commercial with the smelly hockey bag. I think they are still in the design stage on the slant back top. Not many pictures of it. That is the one I wanted, without back seats and roll bar. I might have to go aftermarket, Leer makes tops to fit almost every truck.The link i posted above was the smelly hockey bag. is the link working?
I don't know of any videos of the slant back with the glass open.
I believe all my previous tops followed that.I wonder if the back glass in the SUV style will open like my 07 Jeep Liberty. Tailgate closes first and glass latches down to that. To open, the glass unlatches when you pull the tailgate handle.