Well we have answers for you and they are all the best answers possible. A picture of the back of the leader class toy's box appeared on instagram and it shows that he does indeed come with 2 flame accessories, for both his jet thrusters and it reveals his complexity. Leader Megatron will take approximately 30 steps to convert (depending on what Hasbro considers a step). This is leagues beyond any toy from the previous toy line or any Transformers toy of the past 5 years.
Also, the back of the box shows us his bio and that his wave mate is the redeco of the Age of Extinction Leader Optimus Prime that was also on display at Toy Fair. It also shows his battle face which has the faceplate we previously saw but it also shows that his ram horns are poseable and can be brought closer to his face to complete the look.

