Swindle has a minor role, but doesn't use the FoC design. Blast Off, Onslaught and Brawl are background characters and use their game colours. SDCC or Grimlock vs Bruticus colours will be the closest match for Blast Off, Retail release for Onslaught, and either SDCC, G. vs. B. or retail for Brawl.

Vortex hasn't made an appearance yet as far as I can tell, but I imagine he would also be in his game colours.