I saw these in person for the first time last week at the Detroit Auto Show press day. Yes, completely closed cab with separate bed.
If the rear door was more squared off, all it would do is open into the side of the rear seat, there's no functional use for any additional door space FWIW. There's actually an indentation in the rear lower corner of the tub for the flare from the bed. There's also a lot of space behind the inner flare on the bed. I can imagine the aftermarket inner fender kits already.
The top-off/windshield down/doors off/tube doors looks even better in person than I thought. I liked it better than I expected in the release photos and it's even better in person.
With any of the upgraded leather seats, I can't drive one. The top of my head is literally higher than the top of the rollbar (this should carry over to the JL too, sadly). I was pushing up on the MOPAR sun shade they had on the grey one in the MOPAR area. I've only been in a couple JLs and the cloth seats in them must have less padding in the seat bottom because it wasn't that bad.
I actually grabbed Mark Allen, head of Jeep design, to show him. I asked "So, what did the tall people of the world do to piss y'all off???" His comment was a sheepish "I've heard something like that." Between the MUCH too low fixed rear view mirror with the huge box behind it that blocks a TON of my view to the right and the rollbar, I'm really just not comfortable with how I fit. For my head not to hit the underside of the Freedom panels, it's HARD into the rollbar. It's an incredibly uncomfortable feeling. I'm 6'6" and fairly proportional (not a particularly long torso or long legs, just tall in all proportions.)
I did a video on the JPFreek Adventure Magazine FB page and yes, as I show a couple times in the video, I lowered the seat all the way:
Think this will work for anyone with or without a FB account:
Note that the drawer unit is a modified version from another pickup, not a MOPAR accessory. It did fit nicely, but it was clear that they cut the deck to fit. Also note on getting a feel for the bed length, the bikes couldn't be where they are with any top installed on the Jeep. The front tires are past where the back wall would sit. This one had a 2" lift and 35x12.50s and the matching spare was under the bed.