is Toriyama using this movie for some closure on the Dragon Ball Saga. theres a rumored super saiyan god mode in this movie. and he says something about it being the final level as goku would practically be a god. he also seems to be ignoring the GT story. it's only fair as people see it as not canon. if goku has to become godlike to defeat Bils im pretty sure there would be no other villain that goku cant take on in his rumored new form.
or could this level just be a one time thing and we'll get more dragon ball action