Like I said earlier, I love my AT Pro. I think it was an absolute bargain and a great purchase. That said, here is a list of things (from this thread) that maybe Garrett will put into the AT Pro V2.??..I am also going to take a wild guess at the additional cost for these features..
1. Adjustable arm cuff ($10)
2. Longer headphone cable ($2)
3. Backlight for display, and button to operate it ($5)\
4. Clock ($2)
5. Relocate headphone jack ($10)
So, for less than $30, Garrett could make changes that would answer most of the wishes of AT Pro users. I doubt if we can get different cable connectors without losing the underwater ability of the machine. The connections need to be water proof. Things like wireless headphones and larger coils could be sold as options. A bigger VDI screen could be part of redesigning the box to include a clock, backlight, etc.
Of course, there are ways to do some of these improvements yourself. A stick on clock costs less than five bucks, the Garrett Gizmo extends the arm cuff for $40. Garrett is offering an adapter to allow use of other headphones, and easier connect/disconnect ability. ($40). Even so, I'd love to see an AT Pro V2, especially if they include a boost mode, cam locks or other features mentioned in this thread.