I didn't get a date, just an indication that a 22mm rubber strap was being developed for the new case. All previous rubber strapped rep PO's have used the 20mm strap designed for the standard Seamaster.
I'm actually hoping to just get a case, crystal and strap and swapping in the movement from my 45 Asian as it is still the best dial and movement combo out there for large size PO (correct hand length, best print and proper beat).
As for the versions of PO - ask yourself how many Subs there have been...