There's once thing I love most in the world, it's tokusatsu. I'm talking about Power Rangers, Super Sentai, Kamen Rider, and anything else involving costumed people fighting rubber suit monsters. Considering there's a new story every year for each series, there's so many ideas, and here is just a few you might like

Extinction Exile:
The Dino Charge Rangers' screwing up history hasn't gone unnoticed. Time Force arrests them for undoing the extinction of the dinosaurs, which has unknown to them cause reprehensible damage to the timeline. Now as Time Force works to correct their mistake, the Rangers are facing the ultimate punishment: Eraser from existence.

Let's Rocket to New York:
The Space Rangers decide to pay a visit to New York City and see the Ninja Turtles. They must soon join forces when the Turtles' enemy, the Dragon Lord has powered himself up with a strange rock from space, not knowing it is a piece of Dark Specter. (Basically, it's a way to give a proper conclusion to Ninja Turtles: The Next Mutation)

Cartoon Rider Crisis:
The Kamen Rider multiverse is expansive and unpredictable. The question of 'What If?" is answered in any select world. This time, what if the stories of the Kamen Riders were combined with other shows? Animated Shows? No, not anime, but more western cartoons? What if characters from these shows were given roles they weren't suppose to? And what if a dark force is targeting these worlds for destruction as mere target practice? It's the journey of Kamen Rider Decade that's never been seen before.

Super Sentai Epilogue Movies:
Considering nowadays a Super Sentai has been getting a 'Return' movie at the end of their show, but how about the Sentai that didn't get one? You can give your interpretation of Sentai Returns (Goranger-Go-onger is available).

Secondary Rider Movies:
There's now a trend in Kamen Rider where after the series ends, the secondary rider gets a spin-off movie. What about G3, Knight, Chalice, Gatack and all those other secondary Riders? Don't they deserve the spotlight once in a while?

Kamen Rider/Pretty Cure Crossovers:
I don't know about you, but I'm getting sick of seeing Kamen Rider crossovers that feature someone's OC taking up the belt, and getting trapped in an anime, basically rewriting the entire series with a Kamen Rider added. My idea is for someone to do a Kamen Rider & Pretty Cure crossover, but with the actual Riders, no OC taking the spotlight, and no series rewrite, just make it like a crossover movie, the Rider and Cures meeting and working together for one adventure to stop a common enemy.

Power Rangers vs Super Sentai:
Power Rangers and Super Sentai, two universes so alike and different, two universes that should've stayed separate. But once a year, the walls separating both realities are cracked, forcing both teams to meet their counterparts and work together to defeat a common enemy. Choose any Sentai and their Ranger counterparts.

Kamen Rider Hearts:
A Kamen Rider/Kingdom Hearts crossover. Sora was just a normal kid dreaming of adventure away from his dull life, but when a mysterious cloaked girl shows up with a strange belt, Sora must find it within himself to protect her and the world from the mysterious Organization XIII.

The Legendary War:
Before the heroic space pirates came to earth, 34 Super Sentai were forced to come out of retirement to stop the forces of Zangyack. Who were the leading forces of Zangyack's first platoon? How were so many heroes brought together? Those questions will be answered.

Power Rangers Pony-Up:
An evil wizard steals Twilight's magical essence, when he tries to escape Applejack, Rainbow Dash, Rarity, Pinkie Pie & Fluttershy go after him through his portal, they soon find themselves in a new world and have turned into humans (but not the world of Equestria Girls). They must find a way to live in this new world and stop the wizard and his evil army from conquering it, thanks to the help of their old Elements of Harmony turning them into Power Rangers.

That's it for now. Next up...I don't know, I'll think of something.