For any interested or considering a new motorhome, the 2016 Ford E450 now comes standard w/ the 6 speed Torqshift transmission. *snip* Engineered for performance, durability and reliability. ...
I think it will be around longer than many expect. When it's completely phased out lots of people will have to go back to drawing board-an expensive proposition.
That said, I don't think they'll put a lot of development $ into it anymore. Just enough to get by.