The original "cabins" were not cabins. Originally, beginning in 1971, they were just mobile home trailers placed in each spot, room size about 500 sg ft. The "cabins" happened in the latter half of the 1990's. Those were also around 500 sq ft. mobile homes, with the cabin on the outside, that were transported in whole and placed where the trailers had been. Those have been removed and replaced by the DVC units but the square footage of the inside of the rooms does not appear to be significantly increased (the ceilings appear to be higher), and it appears they just kept the same porch that existed with the cabins. In the inside, as before, there will be a small bedroom that can hold four due to also having bunk beds, a small living room with a bed (now Murphy) for two, a small kitchen, and a single bathroom, combined shower and tub (too small for separate shower and tub).
Many years ago, I actually stayed in the trailers three times and once right after the conversion to cabins. Though they could hold six, we never had more than four and that was "crowded." There was no washer/dryer and and it appears that will not be there now. Parking was available for only one car, which I assume will continue to be true. To get to a pool, you took a bus which I assume will remain the usual method.
Having used the trailers and a cabin, I did not expect the DVC units to be much larger than before -- the lot each cabin was on was not large and making the units larger would have required a lot of tree removal. I view the biggest downside to the new rooms, besides size, to be the lack of a w/d and the bathroom. The bathroom in the trailers and cabins was between the bedroom and the living room and now is going to be at the opposite end of the unit from the bedroom -- in other words, anyone in the bedroom who needs to use a bathroom has to walk from one end of the unit to the other, through the living room and kitchen. Moreover, the designers of the outside of the DVC units must have thought they were going to be put inside Space Mountain rather than Fort Wilderness. Also, certain things we liked about FW are now long gone. You cannot swim in the lake anymore -- taken away in the latter part of the 90s, not because of gators but because of some amoeba. You can no longer make a short boat trip to explore Discovery Island, eliminated in 1999. There is no longer a River Country waterpark, eliminated in 2001. And the large, impressive playground for kids near the lake was eliminated by the CCV cabins.
the other 2 sleeping spaces are in the living room area
... Now it's about keeping up with the latest trendy mall or Hilton.
up for the sarcasm! 
