It is obvious that the motorhome market is considerably less attractive than the UPS/FedEx package car business. Not nearly enough unit sales potential in comparison so Workhorse is simply doing what they need to do from a good business perspective.
I always felt that the Workhorse UFO chassis was nearly ideal for a gas powered motorhome. Unfortunately it was somewhat cost prohibitive and sold in very low numbers. It would not be difficult for Freightliner or Spartan to offer a gas powered pusher chassis, assuming an appropriate engine could be sourced or built by them even, and should be more cost competetive with current offerings from Ford. The elimination of the long driveshaft and providing pass thru storage are worth a lot to me and I suspect to anyone who uses a coach for more than weekends and short vacations. They could also retain air brakes and air ride along with 22.5 rubber. That would be a winner for me, and I suspect could be for many others if the costs could be managed. The investment in engineering and design is already done any additional engineering should be minimal.