In an interview with IGN, Haden mentioned that the team has been hard at work adding content to Mafia: Definitive Edtion. Whilst he doesn’t confirm Mafia 4, adding new features and content to the remake of the first game sure seems like a great way to test new mission ideas and gameplay mechanics for a fourth, more expansive game. Below is what he said:
“We have a number of people on the team who worked on the original Mafia, and they saw it as a good opportunity as we were bridging the gap between Mafia 3 and the next project we’re working on.”
Mafia: Definitive Edition releases for PS4 on September 25, 2020.
Source – [IGN]