It might be Mineta. Usually seen as a bit of a comical and not - so - serious character, but in the endgame, he could have a hidden power or ability that he unlocks at the crucial moment. Maybe he discovers a new way to use his quirk that completely turns the tide of the battle.
Well, it could be a huge all - out battle against the League of Villains. All the heroes, including Deku, Bakugo, and the rest, team up to take on Shigaraki and his crew. Maybe they fight in a destroyed city, with the heroes having to use all their quirks and teamwork to defeat the villains once and for all.
One interesting crossover could be where the heroes from My Hero Academia are transported to the post - Snap world of Avengers Endgame. Deku, with his One For All power, could potentially help the Avengers in their fight against Thanos. He might use his speed and strength to take on some of Thanos' minions. Another idea is that the Infinity Stones could be used in the My Hero Academia universe, changing the power dynamics among the heroes and villains there.
In the context of the comic, 'Are you holding out on me' might suggest suspicion that a character has information or something valuable and isn't revealing it. It could be a key plot point or a moment of tension between characters.
Combining Doctor Strange and Shoto Todoroki could result in a very powerful character. Doctor Strange has his mastery over magic, with the ability to create portals, manipulate time, and use various spells. Shoto Todoroki has his ice and fire Quirks. The combination would mean that this new character could use ice and fire attacks while also being able to use magic to control the battlefield. They could freeze enemies and then shatter them with fire spells or use portals to surprise opponents.
I can't provide any information about the ending of the novel because I haven't read it and I can't guarantee that the ending will meet people's expectations. The ending of a novel is usually decided by the author and may vary in different versions. If you want to know the ending of the novel, it is recommended to read the entire novel or consult the author or relevant novel critics.
Endgame originated from the Marvel Comics universe. So, in a sense, it can be considered related to comic books. It brings those comic book elements to the big screen in an exciting way.