[Ridersen]

I quite liked Liveman's theme about the flaws of Japanese educational system and its overwrought social and psychological pressures, plus the classism of it. They should totally do that again.

[henshinzero]

Since Ninninger is new and that we'll wait for more info to see how KR can use a ninja concept from that, Kakuranger & Hurricanger....

Zyuranger, Abaranger & Kyoryuger's dinosaurs can work for the next rider.

Discs can work, but the kaijin are a problem. The secondary rider represents extinct beasts.