>>10919615BT Megatron got over 105 wishlists in two days on ShowZ, so there's definitely appeal to gender swapping preestablished characters.
>>10919711BFB Magic Henshin is an all female combiner. ignoring the problems over its budget and dev time it had the right idea of using an unorthodox layout to get a more feminine body shape. You could probably do the same with devastator but you'd probably have to remove some members and drastically redesign others. Pic unrelated.
