wikipedia says that Ultra magnus wheeljack bulkhead(formerly) & springer are the wreckers for TF prime. (dont give me the dont believe wikipedia speech I already know it just assuming its correct) Anyway Iv'e always loved the idea of the wreckers. Wheeljack is for sure returning I was thinking around halfway through season 2 a new threat(combaticons) arrives & like a 3 part episode span is dedicated to the concept. at the end of pt1 when the autobots are nearing defeat Ultra Magnus & Springer arrive for the rescue. Springer is a true noble warrior. at the end of pt 3 Megatron kills magnus but not until after magnus delivers the final blow to bruticus. springer takes this very hard & is seen from time to time for the rest of the season, he goes somewhat rogue. Optimus however sees springers good qualities and begins to mentor him through this tough period. (grooming him) we all know who the next prime should be, SPRINGER!