Holy **** End Times was awesome
Mikey was ****ing amazing
Splinters Spirit appeared and helped defeat Ho Chan
Ghostbusters reference
I got teary eyed in that final scene with Splinters spirit and hugging Karai and saying goodbye.
Mikey "I really did meet Megan Fox on that rooftop"
So Rahzar is gone, Undead Shredder is gone, Kavaxas is gone
Fishface seems to gone back to his normal life as a theaf might or might not see him again
Rocksteady and Bebop seemed to have run off someone so it's possible we will see them again
Tiger Claw has made a truce with the Turtles and could be a possibility of joining the Mutanimals, so it could be possible we see him again.