Looking at this floor plan that just about every big manufacturer has some version of. The rear is the same as always - island kitchen, a couple chairs and couch across from a TV and maybe a fireplac...
This is our floor plan, we don't dry camp and mostly stay in the larger RV resort type areas. This is basically our second home on wheels so we enjoy the comforts of the larger coach.
One needs to remember that the reason all of there floor plans are available is because everyone is different in their desires and tastes. If and or when the plans stop selling the manufactures stop building them and are always trying something new to lure new buyers.