Since Barricade wasn't in ROTF he still got a toy anyways-so this can be the same case for "skids and Mudflap" OR They can be killed off or most likely now not in it at all.
BUT this doesn't have a reason for the toys to be based off the GREEN and ORANGE sparks. I don't get this, if they are not in it why make them the sparks? Why not a Bumblebee repaint :lmao (that didn't come out right)
So the twins by the looks are in it for a bit than killed off THEN maybe other characters take their alt modes???
Or they can have new names with the same ugly faces