The MQD AmEx waiver has to increase, maybe a sliding scale that FO remains at $25K, GM $35K and PM $50K. This will drive DL's goal of $10 billion annually from AmEx.

MQD thresholds increased for 2024 status and Choice Benefits changed for 2024. UA 1K is 54 PQF and 18,000 PQP or 24,000 PQP, as current DM is 20K MQD. AA is the original that issues credit cards and flys planes as a side hobby. AA's loyalty point program has many loopholes for bonus points to game the system.

Don't forget that student loans resumed this month, as the freewheeling pent up leisure travel has an other headwind, along with a record $1 trillion in credit card balances with 20 year high interest rates.

EDIT:
This is the Reddit link.