Well, perhaps Izuku's upgrade comes from his emotional growth. As he becomes more confident and self - assured, his quirk evolves. He might start to be able to transfer One For All's power to objects he touches, making them super - powered weapons. Or, he could gain the ability to share a fraction of his quirk power with his allies, enhancing their abilities in a fight.
One idea could be a crossover with the "Harry Potter" universe. Izuku could have his own quirk and attend Hogwarts, facing challenges in a magical world while also dealing with his normal quirk - related issues. Maybe his quirk could interact in unexpected ways with magic.
One plot idea could be Izuku struggling to control his new Gravity Quirk at first. He might accidentally make things float or slam to the ground. For example, in his daily life at school, his books start floating during class, causing chaos. Another idea is that he uses his Gravity Quirk to create new combat moves. He could manipulate the gravity around his opponents to make them immobile or off - balance.
One idea could be Izuku struggling to control his dragon quirk at first. For example, he might accidentally breathe fire during a normal school day, causing chaos. Another plot could involve him discovering unique abilities of his dragon quirk, like flying at high speeds or having super - strong scales for defense. Maybe he has to face a villain who has a quirk that is specifically designed to counter dragon - like powers, which would make for an intense battle.
Another plot could involve Izuku being part of a secret society of heroes with vampire quirks. They have their own set of rules and ethics regarding using their powers, and Izuku has to learn to navigate this new world while still aiming to be a regular hero.
Another interesting plot idea is that Izuku's quirk evolution is tied to his emotions. When he experiences strong positive emotions like hope or love, his quirk becomes stronger and evolves in unexpected ways. For instance, it could manifest as a healing ability in addition to his existing powers. This would make his character development more complex as he has to learn to manage his emotions not just for his own well - being but also for the sake of his quirk evolution.
A possible plot could be centered around Izuku's struggle to control his Phoenix quirk. Since it's such a powerful and volatile quirk, he often loses control. This causes problems not only for him but also for his friends and the people around him. He then has to seek out an old, reclusive hero who once had a similar quirk to learn how to master it.
One idea could be that Izuku's time quirk allows him to reverse time for a short period during battles. So he can correct his mistakes and outwit his opponents. For example, if he made a wrong move in a fight against a villain, he could reverse a few seconds and choose a better strategy.
Well, an interesting plot could involve Izuku facing off against villains who have a special weakness to dragon - like powers. His Dragon Slayer quirk gives him an edge, but he has to learn to use it creatively. For example, if his quirk allows him to breathe fire, he could use it to create smoke screens as well as attack directly. He might also meet other characters with similar quirks and they form a special team to fight against a greater evil.
Well, a great plot could be Izuku's journey to master his fire quirk. He might seek out a retired hero with a fire - related quirk to train him. Along the way, he discovers that his fire quirk has a unique property, like it can burn through certain types of energy shields that most other quirks can't. This makes him a target for villains who want to study his quirk, and he has to fight to protect himself and his secret.
One idea could be that Izuku's time quirk allows him to briefly freeze time during battles. This gives him an edge in strategizing and attacking his opponents when they are immobilized.