why is there no yugioh gx season 4
List of Yu-Gi-Oh! GX episodes (season 4) This is the only season of Yu-Gi-Oh! GX that has not yet been dubbed in English, due to pressures to move on to dubbing the next series, Yu-Gi-Oh! 5Ds. It could also be due to the darker nature of this season compared to the rest.
El Ministerio del Tiempo The show was not renewed for a fourth season, as announced by Javier Olivares at the Fun & Serious festival in December 2017.[5]