I want to see Megatron do a Megatron and enslave the Hydra con by battling it into submission, like what Optimus Prime did with Grimlock, except with no promises of freedom. Also more brutally like consistent battle damage on the Hydra inflicted by Megatron.
Maybe Megatron will do the opposite of what Optimus did, and promise to enslave it, then set it free. But seriously, I'd like to see Megatron enslave the Hydra.
The only thing I can honestly see this being is megs, but other than him it can only be predaking to me, the enslavement idea is cool but been done, and the thing to remember is the dinobots have robot modes so, how would that factor into the thinking that the hydra is the submarine....?
Well it would give the fans something fun to do with pics from the movie. You could have one with hail hydra. One with Megatron decking the hydra. Then one with hail Megatron.