So basically what I'm trying to say here is that in what my idea of what Big Hero 6 TWO would be like is that... -One fine afternoon Hiro was going through Tadashi's old stuff -He finds bulky notebook filled with notes and sketches and whatnot -he flips to a page that has to do with some ideal upgrades for Baymax -the upgrades include Baymax being able to morph into a few other forms. -The forms include a Baycat, a Baydog, a Baybird, and a Bayfish. -Hiro decides to attempt to carry out Tadashi's plan and upgrade Baymax. -after a few failed attempts (comedy put here), Hiro finally manages to upgrade Baymax and enable him to shift into the listed forms. -Abigail Callaghan, Professor Callaghan's daughter, visits her father in jail one that day. -Her father tells her to carry out a plan to destroy the 6 heroes (idk much about this part yet but I'll work on it) -Abigail starts phase one of the plan, and when her father is let out of jail, he helps out. (comedy part within this: They are about to walk down a dark alley towards Hiro's school with dubstep music in the background, but then they stop and agree to both buy Kabuki masks before they go) -THAT'S ALL I GOT SO FAR THANKS :D
Credit to the actual movie, Big Hero 6 made by Disney and the song Immortals, by Fall Out Boy