Starscream goes on a quest for Red Energon; a new Autobot joins Team prime
Finally, another Autobot to join the cast.
It's sooooo boring seeing Bumblebee and the band of recycled heroes... give us something new and creative Hasbro.
Now, considering the toys so far released, there isn't a lot of possible options - Ironhide, Ultra Magnus, Kup and Hotshot.