What if the characters could grow to massive size? If the last angel Kaworu Nagisa(boy), aka Tabris the
angel of Free Will. Had been able to fuse with an Eva what would happen? He could have possibly grown into a giant.(Or if he comes into contact with Adam)

And the hero and other males would grow through some new type of technology to combat newer, bigger, and even deadlier angels. Or maybe obtain a synch ratio so high that the eva actaully changes its shape, gender(for males), and mind into that of the pilot. Or plugsuits designed to make the person into a giant without a weight crushing them from the gravity.