d8b Mark 2 would be awesome, no doubt!
Nice to dream but, this will never ever happen. The "mk 2" was on paper a few months after the original was released (33 and 49 fadered/built-in screen versions). That was killed and then the whole digital dept was shown the door.
Eventually, the result was the DXB. And we all know how that worked out. Even Tascam killed off their DM-4800 recently.
The market drives what gets produced and I predict you're going see more and more of these iPad add-ons. Mackie rolled this thing out, AKAI rolled out a drum pad thing, Alesis hit early with their breakout box...etc. You just know there are going to be more and more of these things to cater to the DAW market as they catch on. There's a lot of "me too-ism" out there in the industry. Can't wait to see the paint job Behringer comes up with when they start ripping this stuff off.