>>8478316>>8478410>>8478452>>8479601>>8479623>>8480302>>8480434I personally thought the pattern was: Hero, Villain, ally to one of those, and oddball "we do what we want" figure to mix it up.
Considering they didn't jerk the Rocksteady and Bebop duo around and did them in back to back waves, and similarly, since each wave has a turtle instead of every other wave or something, I feel like wave 4 will be:
>Donatello (Good guy)>Krang (bad guy to complete Shredder duo)>Casey (ally to complete April duo)>Muckman (Oddball choice)It's possible they'll hold back one of Krang or Casey so that people will check back in for wave 5 news on when they can complete a duo, instead of ordering wave 4 and saying "well, the lineup is complete so clearly the toyline is over and I don't need to check back in ever again."
Also, if they're going roughly off the original playmates line up, wave 5 might be something along the lines of :
>Costumed turtle>Leatherhead>Ace Duck>Unknown oddball>>8480309He was listed as being on the bad guy team in the original card backs though, even though his profile states he gets along with the turtles.