What do you think would be the next complication?

[Roxas]

It is unexpected to me that Rolex introduces an annual calendar/GMT watch. I don't like the design but it is technically awesome. An instantaneous annual calendar with 72 hours power reserve is quite extraordinary. Also, the ring command bezel is very cool and practical. I think Rolex is the only manufacturer that uses this kind of complication (ring command I mean)?

What do you think (or like) would be the next complication? I think annual calendar with moon phase/chronograph would be very nice. And Day-Date with perpetual calendar/moon phase could be the next flagship model.