up to now you had three choices.
the upgrade you could do when you arrived, if available.
you could just go to a hyatt and have lunch and get 1,000 points (which is what i did). You didn't have to be a guest.
you could get an amenity --a cheese plate or some such--at a hyatt
the new listing seems to hint that the 1,000 point lunch choice has disappeared or that there will now be various choices depending on how close to diamond you are.
also hints that the double stay bonus for hyatt place could have greater meaning than first believed