OK. After looking at the Escape Layout B and Nancy's modifications, here's my two cents.
First not everyone who wants a 5th wheel is looking to sleep more people. My mods would increase living comfort, not sleeping capacity.
Get rid of the gaucho most 5th wheels have. I like the steps to the loft. The step area is storage. The step drawers should be sturdy enough to allow at least one of them to be secured open to serve as an additional seating area if needed.
Move the refrigerator
to the sink side of the cabin. This opens up the other side of the cabin. Make the refrigerator
top counter high so that it serves as extra counter space. Add a hinged counter extension on the side of the refrig area so that its possible that the counter extends halfway to the wall. A microwave
could be added underneath the overhead cabinets here.
In the corner where the counter extension lives add an upholstered seating area with a good back rest and arms. Have a curved counter extension that comes from the back wall. When the back wall extension is dropped, this area can serve as a laptop/writing work area. This half extension can meet the other extension so that the option have having a counter from the back wall to the sink exists. This upholstered area could also be moved to where the wardrobe and refrigerator
currently are if the owner wants to move them. This would lengthen the bed for those who need length, not width.
Add a second extra-wide upholstered seat under the back window. This one with removable arms plus backrest. It would be great if the counter extension that comes from the wall could be swung around so that the person sitting here can have an optional desk.
Use a scissor telescoping table for the dinette. This way the table can be used a bed support, moved outside the trailer or laid down flat to open floor space.
On the door side of the cabin have one long bench with storage underneath. The bench is on both sides of the door.
The upholstered seating areas and bench can be broken down into a double bed or an extra long narrow bed if desired.
Get rid of the wardrobe in favor of the wardrobes in the loft. More openess.
I like Nancy's loft plan.