The New Power Ranger film is technically the origin story, and if you stay for the mid credit scene you know they already have part 2 set in motion. Semi Spoiler, it involves a new student wearing Green.
According to Haim Saban if the film does well this weekend he is ready to go to work on part 2 as soon as Monday. He had this to say
“If this film is as successful as I hope on March 24, on March 25 we’ll have the first story meeting for Movie No. 2.”
It morphed up 3.2 million dollars on the Thursday evening shows already, so I think part 2 will be a sure bet.