Mr OP
72
Great Post ! My guess...
As a Nautilus 5712 owner, I think it should be discontinued after 10 years and maybe be replaced by a perpetual calendar ( the 5140 has already been discontinued) with the 240 ( both SS on bracelet or gold on strap )
That would be the star of the show...
Then the 5990R could replace the 5980R ( total discontinuation of the 5980) on bracelet or strap to make it cheaper and lighter...
I don't think they will replace the 5711 or maybe more for the 50th birthday in 10 years... So why not offering a 5711G on bracelet with grey dial ( they released the 5711R and P already ) since the waiting list is crazy for the steel version...
Then also a new annual calendar with a more modern layout a la 5205 to replace the 5726 even if it was released later...
So
1 Perpetual Calendar
2 Rose Gold chrono
3 white gold 5711
4 annual calendar
VoilĂ !
Olivier