Examining the postcard that came with the lastest pin I noticed that they mistakenly described it as being "inspired by the 'Mutant Apocalypse' episodes" . . . Not sure if that guarantees the last pin will be "Mutant Apocalypse" related, or if they decided to go with "Wanted: Bebop & Rocksteady" instead at some point and simply forgot to change the text.
Anyhoo
love this pin, maybe even more than the Eastman Splinter one... cuz it just functions as a pin a bit better.