His sense of humor might change. While Percy had a very down - to - earth and sarcastic humor as a mortal, as a god, he might develop a more refined and sometimes cutting sense of humor. He could use it to put other gods in their place or to make a point during a council meeting. Also, he would likely become more confident, bordering on arrogance at times. His new powers and status would give him a boost in self - assurance, but his friends from his mortal days would probably be the ones to keep him in check and remind him not to get too full of himself.
In this kind of fanfiction, one possible plot could be Percy having to deal with the politics among the Olympian gods. He might try to bring about changes, like making the gods more involved in mortal affairs in a positive way. For example, he could convince them to be more proactive in protecting the environment which is being damaged by humans. Also, Percy would probably have to face new enemies. Since he's now an Olympian, he could attract the jealousy of some minor gods or ancient monsters who see him as a threat to the established order.
He might become more patient. Since he has control over time, he would understand the concept of waiting better. For example, he wouldn't be as impulsive as before when facing challenges.
He might become more war - like. Norse gods are often associated with battle, so Percy could lose some of his more laid - back Greek side.
His sense of humor might change. While he was always quick - witted as a demigod, as a god, his humor could become more refined or perhaps more sarcastic in a way that only the other gods would understand. He'd be around different company, and that would influence how he expresses himself. Also, he could become more confident, bordering on arrogant, as he has so much power at his disposal now. But at the same time, his core values of loyalty and protecting the weak might still remain, just expressed in different ways.
His sense of humor might change. He could become more wry and god - like in his jokes. Also, he might be more decisive, as a god has to make big decisions quickly. However, his love for his friends and family would still be there, just expressed in a different way perhaps, more like a distant protector.
Percy's personality would likely shift in several ways. He'd be more cautious in his actions as his decisions would have far - reaching consequences. His sense of humor might change too. Instead of the light - hearted quips he used to make, he might use more sarcasm or dry humor befitting a god. And his loyalty, which was always a big part of his character, might be tested as he has to balance his new divine duties with his relationships with his old friends. He may become more calculating in how he shows his loyalty, making sure it doesn't conflict with his new role as a god.
His confidence would likely soar. As a god, he'd know he has more power and capabilities. So he might be more assertive in his actions and decisions.
In this fanfiction, it could be that Percy is chosen for a special task by the existing Olympians. They see his potential not just as a hero but as someone who could join their ranks. So he gets trained in Olympian magic and lore, which is very different from what he's used to. He has to learn how to control new powers and also deal with the politics among the Olympians.
His personality would likely experience a shift towards a more solemn and responsible demeanor. With godly powers come great responsibilities. Percy would no longer be able to act as carelessly as he did as a demigod. He might become more reserved in showing his emotions, especially as he realizes that his actions as a god can have far - reaching consequences. Also, his loyalty might be tested as he has to balance his new divine status with his relationships from his mortal days.
Well, Percy's personality transformation would be complex if he becomes a wolf. He might become more in tune with the natural order. His sense of loyalty could intensify, much like how wolves are loyal to their pack. This could mean that he becomes even more protective of his friends, seeing them as part of his 'pack'. On the other hand, his communication style could change. Instead of relying on words, he might use more body language and growls to convey his feelings. And his relationship with authority might also shift. He could be more resistant to being ordered around, as wolves have their own hierarchy and he might see himself as an alpha in some situations. This new personality would add a whole new layer of depth to his character in the fanfiction.