During a recent Niconico Livestream, Yakuza Producer Toshihiro Nagoshi mentioned that Sega is considering remaking Yakuza 2,3, 4, and 5. This comes after the success of Yakuza: Kiwami as it has sold about half a million copies in Japan and Asia so far.
Nagoshi also mentioned that Kazuma Kiryu will be the only playable character in Yakuza 6.