The adoption would have a profound impact. Peter, being used to a more colorful and talkative world in Marvel, would have to adjust to Batman's silent and often solitary approach. Batman, on the other hand, would have to get used to Peter's constant chatter and his more light - hearted view of heroism. In combat, Peter's agility combined with Batman's combat skills would make them a formidable duo. It could also open the door for crossovers between the two universes on a more permanent basis, changing the landscape of both superhero realms.
Well, for one thing, Peter's life would be very different. He'd be in a darker, more brooding environment. Batman would probably train him even more rigorously. Peter's scientific knowledge could be a great asset to Batman's tech - based crime - fighting. In terms of the Marvel Universe, it would be a big loss. But in the DC Universe, he could become a key figure in Gotham's protection, and perhaps inspire other young heroes in the DC world.
Peter's life would change drastically. He would have access to S.H.I.E.L.D.'s vast network. He could get better training in combat and espionage, which would make him a more well - rounded superhero. Also, he might have to move to a more secure location, which could mean leaving his friends and normal life behind, at least to some extent.
If Peter Parker became The Punisher, it would be a huge shift. Peter is typically known for his sense of mercy and trying to rehabilitate villains. As The Punisher, he'd be more brutal. This could lead to a darker and more divided Marvel Universe. His relationships with other heroes would be strained. For example, Daredevil, who often tries to uphold the law within the legal system, would likely oppose Peter's new methods.
Mary Marvel, with her superhuman strength and flight abilities, could come to Peter Parker's aid when he's facing a villain that is too powerful for him alone. Peter, in turn, could use his intelligence and web - slinging skills to help Mary in a more urban or tricky situation. For example, if they were in a city filled with traps set by a villain, Peter could guide Mary through them using his knowledge of the terrain.
The relationship would change in many ways. Emotionally, they would be more intertwined. They would have to communicate more about their fears and hopes for the future. Physically, Peter Parker might be more cautious around Mrs Marvel, especially as her pregnancy progresses. Socially, they would face different reactions from their friends and colleagues. Some might be excited for them, while others might be skeptical. This would either bring them closer together as they face the outside world as a unit or cause some tension if they have different ways of dealing with the opinions of others.
Loki is known for his mischievous nature. In this fanfiction, he could bring out a more playful side in Peter. Peter might start to use his powers in more creative and unexpected ways, like using his web - slinging not just for fighting and swinging around, but also for creating elaborate pranks, inspired by Loki. Also, Loki's manipulative side could either make Peter more distrustful of others or teach him how to spot manipulation better, depending on how their relationship develops.
At first, it would be really rocky. Peter would be very wary of Venom given their past encounters. But as Venom shows his more caring side in the adoption, Peter would start to trust him a bit. They'd have to learn to communicate, which would be difficult because of Venom's different way of thinking.
One idea could be a crossover where Peter Parker's scientific knowledge helps Mary Marvel when she gets caught in some sort of DC - related technological snafu. Maybe he figures out a way to reverse the effects of a strange device that was meant to weaken her powers.
Well, it would change Peter's life in a huge way. Firstly, he'd have access to Tony's vast resources. He could get better tech for his Spider - Man suit right away. Second, he'd be under Tony's protection, which means fewer villains would dare to target him directly. Also, he'd be part of the Avengers family in a more official way, learning from the other superheroes.
No, there are many other comic universes out there. For example, Image Comics has created some popular ones.
In a 'Loki adopts Peter Parker' fanfiction, Loki might teach Peter some of his trickster ways. Maybe he'd show Peter how to deceive enemies in a more magical way than just using his Spidey - sense. For example, Loki could teach Peter how to create illusions to confuse villains during a fight.