I saw this news item on seibertron, about the US Hasbro website store giving away free Kreon figures with some purchases on their site... and saw the example figure being shown - BotCon Optimus.
Fortunately they had a disclaimer to say that the free Kreon is random, but I was just thinking that perhaps this was just Hasbro's way of offloading the returned BotCon Optimus Kreons.
Either that, or they made so many of the 'limited edition' Kreons that they giving them away everywhere.