Notice the box he came in? It is written "TRA GEN MAY MAYHEM DELUXE GROOVE". This could be a huge clue. Some may remember that last year Hasbro had a May Mayhem publicity event. The highlight of this promotion was that this would be the month where fans could acquire the unreleased individual Combiner Wars components Quickslinger (Slingshot) and Brake-neck (Wildrider):
This was the description of that part of the event last year:
May 22 – AERIALBOT QUICKSLINGER and STUNTICON BRAKE-NECK will be available exclusively through participating online retailers, such as Amazon.com, Walmart.com, Target.com, ToysRUs.com, Entertainment Earth, BigBadToyStore, Diamond Comics and Hasbro Toy Shop. With these two new figures, fans are finally able to complete their G1-accurate SUPERION and MENAOR figures! In addition to these all-new toys, several vendors will be running special promotions on TRANSFORMERS GENERATIONS: COMBINER WARS figures, providing fans with an ideal way to complete their collections.
It could possibly be that this event will be repeated and the other two members that have yet to get an individual release in the west will. One being Deluxe Groove and the other being Shuttle Blastoff.
Let us know what you think!