Looks like it will be sold as a kit, as opposed to a single piece, which means some variations of what you can screw in between the base and the top cap.
Not really sure what to say about the pictures though, not enough details yet. Still waiting on more information atm.
But you've got a point, therefore so many users have chosen the lite version over the 3.1 - too much added weight/length for too little added value, not to mention the infamous (for me at least) valve filling...
I hated the valve filling at first but after figuring it out, it's nice not to have to remove the atomizer to fill and no chance to flood. I bought a 10 pk of needle tip bottles because they're so much better than the plastic tip bottles. They're interchangeable with most bottles juice comes in too.