The significance of Thor's hammer in comics is huge. It's a source of his power, a tool for justice, and a mark of his destiny. Without it, Thor wouldn't be the same legendary hero we know. It's a symbol that has deep roots in the comic book lore and is crucial to the stories and battles he faces.
Yes. The breaking of Thor's hammer in the comics is part of complex and dramatic storylines. It can happen for various reasons related to the plot and character arcs.
He might gain new powers or abilities. Since the hammer is a powerful magical weapon, lifting it could unlock some latent potential within Peter. Maybe he can now control lightning like Thor, or he has enhanced strength and durability.
Fanfiction often takes creative liberties. It could be that there is a cross - over event that changes the nature of Thor's hammer's worthiness test. Maybe a powerful magical entity in the Harry Potter universe meddles with the hammer's magic. Harry Potter has shown great moral fiber throughout his adventures. His ability to love deeply, his sense of justice, and his unwavering determination against evil could be seen as the 'worthiness' factor by the hammer's magic, allowing him to lift it.
Vision cannot lift Thor's hammer in the comics. The hammer's magic is very selective, and Vision doesn't possess the qualities necessary to overcome its enchantment and lift it.