I've been throwing around one that was part of SPD; that the Rangers the show revolves around aren't the only group, but part of a larger organization with multiple Ranger teams.

This times 100000000

yellow ranger would die by Ep 6 prolly

I still wants vegetable themed Sentai show
The crossover potential with Gaim is enormous

i want see other family sentai or cop sentai

fixed.:p

I would love a Yokai themed Sentai team.

Red= Vampire
Blue=Werewolf
Green=Zombie
Yellow=Ghost
Pink=Mermaid

Yokai Sentai Darkranger!

i would love to see a sentai with a combination of both a knight and dragon motif. In a way, it would be like magiranger. With each ranger having control over a specific element.

Red: Fire
Blue: Water
Black: Shadow
Yellow: Lightning
Pink: Wind

6th Ranger:
Green: Wood/Earth

I'd kill to see a Western-themed Sentai.

Noir themed!

Their suits could be entirely black and white - Detective One, Detective Two etc etc They could fight gangsters and the episodes could be framed as cases of the week. Plus the sixth Ranger could be a Femme Fatale.

How about a monster theme rider that'll rival Kiva.

1. Red - Vampire
2. Blue - Werewolf/Lycan
3. Green - Merman
4. Yellow - Mummy
5. Pink - Catwoman
6. Orange - Dullahan/Jack'o Lantern
7. Violet - Frankenstein
8. Black - Witch
9. White - Sasquatch
10. Silver - Ghost/Grim Reaper

Dinosaurs. But different than what we have got in the past.
Red-Spinosauras
Blue-Velociraptor
Green-Tyrannosaurus
Yellow-Pteradon
Pink-Tuxapaura
White-Carnotaurus
Black(evil)-Giganotosaurus