Although there is no part 2 yet…
Kodoani.com – Anime Masamune-kun’s Revenge released the April Fools illustration on Friday with the joking announcement that “season 3.” In the illustration, Yoshino Koiwai is holding out his hand for a “Confirmed season 3 production” sign, while Aki Adagaki points out : “What are you doing? Before you can publish part 3, you have to announce part 2! Take it down!”
The image hints at a possible season 2, as there is a second sign below “season 3”.
Hazuki Takeoka and Tiv’s Masamune-kun’s Revenge (Masamune-kun no Revenge) manga got a television anime adaptation that premiered in January 2017.
The manga launched the series in Ichijinsha’s Monthly Comic Rex magazine in 2012 and ended in June 2018. An anime disc (OAD) that Ichijinsha included with the manga’s 10th volume also tells a “back story.” for manga.
Theo: Kodoani.com