This is covered in the latest G.I. Joe Collectors' Club magazine, which i just received.
The set featuring Scarlett, Dr. Biggles-Jones, Cobra Commander, Megatron, and Ratbat, also features Autobot Blackcat and Autobot Toaster!
Blackcat is a recolor the SDCC Exclusive Ravage figurine (the one packed with the Baroness) in green, black, and red.
Toaster is the SDCC G.I. Joe Blaster boombox accessory in blue / gray with green and black detailing!