Black Panther II Working Title Leaks, So What Does It Mean? Black Panther II Working Title Leaks, So What Does It Mean? The Black Panther sequel is ready to hit the floors and is going under production with a working title. Announced last year, the MCU Phase 4 entry Black Panther II, which will mark the 30th film set within the shared continuity of the cinematic universe, has got a working title. The film, aiming for July 2022 release, is gearing up for production in Georgia under the working title Summer Break. This is not the first time Marvel Studios has given one of its ventures a nickname. Currently, most of the Phase 4 films are into early or mid-stages of production. For instance, earlier, the working title of