Activision has released the full list of playable characters for Transformers: Revenge of the Fallen video game.
Based on the screenshot (above), I guess Seeker is really Skywarp and they couldn't use that name for some reason. Alternatively, they could mean any number of seekers (Thundercracker, Dirge, etc) who would all share the same character model of Starscream and simply have a different pallet of colors. Not sure what Aerialbot or Protectobot means either in this context. In G1, that is like the Constructicons as 5 Aerialbots merge to form Superion and 5 Protectobots merge to form Defensor. In this case, Aerialbot probably the name for the Breakaway character repaint and Protectobot is the rename for Ratchet. Thanks to D-Squared and Gregory for the link.
Another link here to some screenshots which had the great picture of Long Haul.