Owari

Owari is the twenty-sixth episode of the fourth season and the one hundred fourth overall, the final episode of the fourth season. This episode continues the events of "Requiem". It will air on February 26, 2017.

Spoilers

 * A funeral is held for Splinter outside of the O'Neil Family Farmhouse, attended by the Turtles, April O'Neil, Kirby O'Neil, Casey Jones, Shinigami, Slash, Leatherhead, Tyler Rockwell, Pigeon Pete, Ice Cream Kitty, Dr. Cluckingsworth, and Chompy Picasso.
 * Stockman-Fly returns to human form again after Michelangelo throws a Retro-Mutagen Light Bulb at him.
 * Leonardo kills Super Shredder on the rooftop of Shredder's Mansion.

Characters

 * Leonardo
 * Donatello
 * Raphael
 * Michelangelo
 * April O'Neil
 * Casey Jones
 * Splinter's Spirit
 * Karai
 * Shinigami
 * Leatherhead
 * Slash
 * Tyler Rockwell
 * Pigeon Pete
 * Super Shredder
 * Bebop
 * Rocksteady
 * Tiger Claw
 * Stockman-Fly
 * Footbots
 * Elite Footbots
 * Kirby O'Neil
 * Chompy Picasso
 * Ice Cream Kitty
 * Dr. Cluckingsworth

Trivia

 * "Owari" is a Japanese word for "the end."