Fansproject have released a teaser for what I presume is an upcoming set of figures. Speculation is ranging from not-Stunticons to not-Headmasters to not-Technobots. There is a suggestion that they're a combiner set, although like the current FOC Combaticons, there doesn't seem to be one bigger than the others.

Here's the teaser...

Function X from Fansproject by M-bot2011

Of course it may be something that's already been announced that I've missed, and I'm certain there are many among our community more savvy at this kind of guessing game than me. Take it away folks!