I want to throw in the forgotten Scramble City combiner:

Seacons: Piranacon
Body: Snap Trap
Limbs:
Tentakil
Skalor
Seawing
Overbite
Legend weapon: Nautilator

Last Toy Appearance: Kre-O Microchange combiner, reissue of the G1 toy, BW space pirates.
Last Comic Appearance: Many of the Seacons have appeared in MTMTE, many damaged but not fatally (despite appearances).
Last Media Appearance: Masterforce (Beast Wars II for God Neptune)

Speculation: They are the one classic combiner that actually has a sixth member who turns into a gun for the gestalt. Of course all the limbs become a gun for their gestalt, but you could pick one - I'd like Nautilator to be it. There might be some way to reuse/remould some limbs for parts of Abominus/Monstructor/Predaking. They have recolour potential for Beast Wars fans.



Also if they did a Predaking some sort of exclusive version as the Anibots would be cool.

I was just looking at the Kre-O exclusive combiners in store yesterday (Grimstone, Lazerbolt, Obsidian, Volanicon). Their animalistic limbs could also be a way to reuse animal modes for Predaking, Piranacon, Monstructor and Abominus.