All the source of the power and forms were created from a Sealing Shuriken.
All of the powers and forms were inherited from a Ninja Nexus Prism.
Involves a Power Ranger making a cameo.
Does not involve any Sentai Rangers making a cameo.
None of the actors have family related to or have been in a previous Sentai themselves.
Kelson Henderson from many Disney Era seasons plays the role of Mick. Peter Sudarso is the younger brother of Yoshi Sudarso, who was the previous season's Blue Ranger who made a cameo in Ninninger.
The running gimmick of the series is they are the last ninja.
The villains show, Galaxy Warriors, can be considered a gimmick.
Don't meet anyone from Kyoryuger as the current team.
They do meet past RedNinjas, AkaRed, and the ToQgers during the shows run and the Zyuohgers and Kyurangers (briefly) along with every other red ranger in the Zyuohger vs Movie.