Despite the challenges, Lee confirmed the franchise will continue. “We are working on the scripts for [The Roundup] five, six, seven and eight right now, each with different stories and tones,” Lee told Screen. “I will remain the central character until eight but, after that, I’m not sure yet.”
He confirmed that Lee Sang-yong, director of the second and third instalments, will return to helm the fifth film.
https://www.screendaily.com/news/don-lee-planning-four-more-roundup-films-and-return-to-marvel/5190950.article
범죄도시2,3를 연출한 이상용 감독이 5편으로 시리즈 복귀 예정