https://insider-gaming.com/call-of-duty-2025-zombies-maps-details/
I'd say this lines up perfectly with the character descriptions we got today.
Richtofen is from an alternate universe where the Axis won the war, so his map would be nuked New York
Takeo is a ronin from 1591 Feudal Japan, so his map is the Japanese temple at the foot of an erupting volcano
Dempsey is a Vietnam war veteran, so his map is the Vietnam map
Nikolai is a soldier in the Soviet invasion of Afghanistan, so his map is the Afghanistan map
Only question remains is what's up with the Space Station map, if that ever releases to begin with of course.