To me, I feel lime Magmatron has a good chance are being a Commander Class figure. He might not be the most well known character, but he has a lot going for him:
1. He's something different - we've not gotten any BW Commander classes, so immediatly he'll look different and sometimes that's important.
2. He's not a truck - this ups the varity of the line seeing as we've gotten 3/4 trucks in a row (is SS Ultra Magnus still in the pipeline?). It's kinda a repeat of 1, but not fully imo.
3. He's probably the best figure in BWNeo, and just trying true to that will give him a lot of value: 3 different dinosaurs, that can combiner to create a very cool and imposing looking villian, or into a mega dinosaur.
But who knows, maybe he'll be a future Haslab.
I can't see BW Galvatron as a Commander, even if we're going for scale. I'd love to see one of my favorite molds get a reworking to do him justice, but I'd settle for a leader class version that's at least as good as TM2 Legacy Megs.
THough if we get a core class Bw2 character, please give us Stampy.