You know that if we don't see it in next year's BotCon set, it means there is a good chance that Hasbro has it on their upcoming agenda (or were planning to do it during 2014).
FunPub would need to use the mould within the next year if they were told by Hasbro "recently" they had no plans to do it... or else FunPub might be told next year that it is now on Hasbro's schedule (after their focus of the Movie line is finished and Hasbro can release more non-Movie product).

The Doubledealer redeco was apparently one FunPub wanted to do but were told that Hasbro were already doing it, so it is a mould they had/have in their sights (and they would be aware of the fan interest in a Flywheels redeco). Since it didn't show up in next year's Subscription Set, and we already know the 2014 Membership figures, it only leaves them with the 2014 BotCon toys before they have to go back to Hasbro with their 2015 toy ideas.

I wonder... if FunPub did end up doing this Flywheels redeco, would they redeco the Springer/Sandstorm mould into Battletrap to make them a matching pair (which would help sell Battletrap, who might not look as good as Flywheels).