Current 4" Wave:
Super Sonic, Robotnik, Shadow, Rouge the Bat

Next 4" Wave:
Espio, Egg-Robo, Modern Sonic, Modern Tails

After That:
Vector, Ray the Squirrel, Modern Amy Rose, Classic Sonic

Current 2.5" Wave
Classic Super Sonic, Classic Amy Rose, Silver, Super Shadow, Modern Knuckles

Next 2.5" Wave
Classic Sonic, Classic Knuckles, Classic Eggman, Modern Tails, Shadow

After That:
Ray, Mighty, Classic Tails, Classic Metal Sonic, Sonic(?)

Upcoming Playsets:
Flying Battery Zone
Egg Mobile Battle Set

Leaked:
Classic Christmas Theme 2.5" Character Set:
(Christmas Sonic, Tails and Knuckles. Super Sonic, Ray, Mighty, Metal Sonic, Eggman, Crabmeat, Buzz Bomber, and Chopper. Various accessories)
Classic 2.5" Characters Set: (Sonic, Tails, Knuckles, Amy. Eggman,