I guess I'm confused:
Don't long (29 foot to 32 foot) Class C motorhomes for the U.S. market usually require chassis GVWR ratings in the 14,000-15,000 lb. range? With no E450(Ford) or 4500(Chevy) van cutaways available eventually after the various new lighter-service chassis mentioned in this thread take over in the U.S. - how is this market segment going to be addressed?
This is notwithstanding that some of us don't care for a Class C motorhome being built on a chassis that winds up being continuously weight-loaded to 90+% of it's capacity by the coach ... that's why we bought a small Class C (24 feet built on an E450) with a GVWR rating well above the coach's average running weight ... for more load-handling-safety and systems-ruggedness margins during the life of the motorhome.
I probably missed something in the above discussions mentioning how, for instance, in the future Ford was going to deal with both the 14,000-15,000 GVWR van cutaway market plus enough horsepower plus better fuel mileage?
.... and BTW we, and probably many other folks, don't care for those world market cab designs with a big step-up into the the cab because the driver and passenger have to sit on top of the main engine underneath them.
IMHO, the classic U.S. van style and shape are just that ... a classic, and all that's needed is better fuel mileage along with adequate horsepower for the GVWR required by the various-sized Class B and C markets.