Something I've been thinking about for a while is what commander class figure we will get in the third WFC chapter. My guess from G1 would be the Countdown base, since he would be appropriate for a trilogy somewhat focused on micromasters. Of course the Countdown micromaster has already been done with Omega Supreme, but you could give the base it's own robot mode like they have done with other bases in Earthrise. Another suggestion I've seen thrown around is Armada Tidal Wave. Now that it's looking more and more likely the third chapter will focus on Beast Wars, I think we could get a new Magnaboss. Keen to see what other people might be thinking though.