Fenix 8 Pro out, will Mk4 be based on Fenix 8 or Fenix 8 Pro?

What are you thoughts/guesses about this?

As like, waiting for a year for Mk4 and getting all the Fenix 8 Pro things might be doable.
Waiting for year and disappointing not getting any of the Fenix 8 Pro features would be pretty meh.

On the other hand after Mk4 is released Fenix 9 is also out or at least near release.
So then if it's disappointing one could get Fenix 9 for daily-driver and keep Mk3 as dive-only.