I don't think the targetmaster modes for the little guys look terribly bad (except for maybe Chop-Shop, where they don't even try to make him look like anything but Chop-Shop sitting on Megatron's arm), but they're absurdly oversized for these little guys. Perhaps being plugged into Metroplex will look better.

Hopefully they'll do something for the Decepticons legend class figures, even if it's just a Metrotitan recolour of Metroplex or something weak like that.