The official Dragon Ball Super Twitter page has updated with the North American premiere details for Dragon Ball Super: Broly. The film will premiere in theaters on January 16, 2019 and is stated to be a multiple night event. No other details are confirmed at this time, however tickets for the event should open soon so check out the official Dragon Ball Super website for more details.
The tweet also revealed that the English Dub cast will return to reprise their roles for the film. This includes Vic Mignogna and Dameon Clarke who will reprise their roles as Broly and Paragus, respectively.
— Dragon Ball Super (@dragonballsuper) September 19, 2018
Source: Dragon Ball Super