No further patches are planned. The project stands as a finished monument to fan dedication in the face of Capcom’s regional neglect of the series. Sources (for internal reference): GBATemp forum thread (2020-2021), Absolution’s blog (archived), Basara 4 English Patch Discord announcements, RPCS3 compatibility wiki.
Fans of the Sengoku Basara series and retro gaming archivists 1. Executive Summary The Sengoku Basara series, a flamboyant hack-and-slash action game by Capcom set in a dramatized Sengoku period, has a dedicated Western fanbase. However, Capcom ceased official English localizations after Sengoku Basara: Samurai Heroes (2010) on PS3 and Wii. Subsequent critically acclaimed titles, notably Sengoku Basara 4 (2014) and its definitive edition Sengoku Basara 4: Sumeragi (2015), remained Japan-exclusive. sengoku basara english patch
The patch is not accessible. They are advised to emulate the older Samurai Heroes or watch playthroughs online. No further patches are planned