A complete TMNT reboot , and have them based on the original comics, with a little of the 80's animated stuff added.
TMNT 1 : Origin of the turtles. Turtles vs. The Purple Dragon Gang led by Hun ( with a human Bebop and Rocksteady as members). Meet Casey Jones . Face the Foot and kill the Shredder.
TMNT 2 : Shredder survives. Hires Baxter Stockman to use his mousers to track and kill the turtles. Meet April O'Neil. A final showdown between the turtles , Shredder, and the newly mutated Bebop and Rocksteady.
TMNT 3 : Splinters gets kidnapped by Utroms, led by an evil Utrom named Krang. Rescue Splinter, but get caught in the Transmat device and transferred to another world where they meet Fugitoid and fight Triceratons.
TMNT 4 : The Foot is rebuilt, and led by Karai. Turtles face the Foot in a final showdown, and fight 4 mutated clones of the Shredder before facing the final villian : A mutant turtle with Shredder's DNA called Slash.
TMNT 5 : Turtles now live in the country with April & Casey. Renet appears with the time sceptre. Transports the turtles to barbarian times to stop the demonic Savanti Romero and his undead army, with the help of Zog, a misplaced Triceraton.