This is a cool topic. I would be interested in a GI JOE crossovers line. When I was a kid my favourite toys were Lego and Transformers. I liked GI JOE for the vehicles, I did not buy any, hey but I was interested. It would be very cool if they made them into transformers, and like someone else said have mini figures you could place inside them. I dislike the other crossovers lines especially their heads. It would be a better concept to have normal bot heads and even make them subtly similar to popular Transformers Characters. Have a Megatron or Optimus Prime head as example.