It could get even more crowded with the new rule giving solo cruisers double and triple points. While I like that policy change it also means people can accrue points quicker.
A friend of mine just made Pinnacle Club and he told me some changes are coming, such as D+ members getting the boot from the Concierge perks as soon as every ship is retrofitted with a real Diamond Lounge. Concierge will be only suite guests and Pinnacle members.
I never understood the wide gap they made between D+ and Pinnacle. Like all loyalty programs, the C&A Society has set a course for it's own destruction as it will have to either cut back on perks and keep on adding new levels to spread out the crowds.
I currently have 190 points and will never see Pinnacle.