Just to clarify. Elite Premier (old 34,000 retail points, new 54,000 retail points) crosswalks to Premier Plus in HGV Max, NOT Centum. Benefits are similar to Elite Premier but lose the 30% Open Season discount in favor of $700 credit toward OS - a downgrade, to me. Centum (>100,000 new retail points, corresponds to 62,500 old retail points) has those benefits you listed. I am Elite Premier and have 103,000 points - 67,000 of which are retail; the rest are resale deeds. I do not qualify for Centum. I have to think that the number of owners with >100,000 retail points are very limited. Because conservative estimate at $8 per point for 62,500 is $500,000. Or they purchased retail-qualifying affiliates.
I did make the switch to Max after swapping out gold deed W57 (that cost me $760 resale) for platinum version for roughly $12500 (factoring in bonus points cash value). So I will be Premier Plus and, sadly, no longer legacy Elite Premier. Reading the club rules pdf that is updated each year, the entire Elite system and all described benefits can be modified canceled or taken away at any time for no reason at all. HGVC as a company is all in on MAX and these new tiers seem to be the future. I wouldn’t be surprised to see legacy elite benefits change in time (not for the better).
Sean