Paul, I don’t think I should trust Google Translate on this, but this report on Eurogamer Czech seems to be saying that Hangar 13 returned to Mafia 4 after Rhapsody was cancelled. Is that the case?
https://www.eurogamer.cz/articles/2020-05-26-v-mafia-3-objevena-mapa-berlina-ze-zru-ene-piona-ni-hry