According to someone that was at a Stellantis dealers meeting in Las Vegas, there will be a Ram 1500 REV model called the XT that will have an on-board generator for extended range.
https://www.reddit.com/r/cars/comments/120obd3
Ram
*New all electric REV 1500
REV XT with on board generator to extend range
Configurations include 350 miles of range, 500 miles of range, and even more with the XR.
Up to 14,000 lb. Tow capacity
*Tungsten trim- Higher trim than Limited
14+” screen, 10+” pass screen, massage seats
*REV MT mid-size concept EV
Sounded like the mid-size ram was going to be a reality