@barnee @Grinchveld Thinking about every possible victory condition for my “22 Victory Cities” AA50 map, I might try the below scheme:

(note that the ‘examples’ above give a possible or likely board situation resulting in the given outcome for the given side - E.g. for the Allies to secure a “Favorable Détente”, they could (for example) hold all original 1942 VCs while also managing to liberate France and, say, Singapore.
Here are the Victory Cites for that map, with initial control indicated for each setup:

Note that for this setup, compared to OOB AA50, I’ve included four more allied-controlled VCs: Rio, Cape Town, Cairo, and Singapore. This (and a recognition of the nigh-unassailability of North America) is the reason for the discrepancy between Axis and Allied VC requirements.
Any of these scenarios would be fun to play to in a set number of rounds; say 6 or 7. The number of rounds has a huge impact on outcomes, of course: “Total Victory” in even 8 or 9 turns would be extremely difficult, whereas 2 rounds is more than enough for Détente.