For those gunning for Lifetime Diamond:

Prior to May 1, 2020 if you were an Aspire or Ascend/Surpass holder:

• $1 eligible spend @ a Hilton property = 10 base points
• any other spend = 0 base points
• Lifetime Diamond* = 2,000,000 base points = $200,000 hotel spend, irrespective of AMEX HH card spend

From May 1, 2020 to December 31, 2020:

• $1 eligible spend @ a Hilton property = 10 base points
• $1 spend = 1 base point
• Lifetime Diamond* = 2,000,000 base points = $200,000 hotel spend and/or up to $2,000,000 hotel and additional spend on AMEX HH cards

Lifetime Diamond = 10 years Diamond, 1,000 paid paid and/or award nights or 10 years Diamond, 2,000,000 base points

So, if you weren't Lifetime Diamond yet (and are willing to devote 10 years of your life to this effort and/or be an Aspire card holder or spend $30K/year as a Ascend/Surpass card holder) and were already in the spendy category (aiming to clear 2,000,000 base points), this helps. If you were in the BIB (butt in bed) category (1,000 paid nights), probably not a big difference.

David