Power Rangers Ninja Steel will premeire on Nickelodeon in January 2017.
In keeping with Power Rangers production tradition, Ninja Steel will utilize effects, props and re-dubbed/re-edited action footage from Ninninger combined with new “out of costume” scenes featuring English-speaking actors in order to create a storyline of its own.
As is the case with most other Sentai series, other characters were added to the cast of Ninninger as it ran and presumably will also become part of Ninja Steel, but no casting has yet been announced for those roles.
While the Power Rangers franchise has maintained a loose internal continuity from season to season, it is not immediately knowm to what (if any) direct extent the new series will connect to its predecessors or the events of the upcoming live-action feature film, which is based on the original 1990s version of the series.