Yes, in some fanfictions, Percy is often reimagined as the king of the gods. Writers like to play with the traditional mythology and give Percy this exalted status for creative and interesting storylines.
I think the nature spirits might support Percy. Since Percy has a connection with water and nature in general, they would see him as a more benevolent leader compared to the current gods. Also, the mortals who have been saved by Percy in the past would probably be in favor of him becoming the king of gods. They believe he would use his power to protect them and make their lives better, rather than just for the gods' own amusement or self - interest.
Well, it could be that there is a prophecy about Percy becoming king. As he fulfills the different parts of the prophecy, he gradually gains the power and status. For instance, he might first gain the loyalty of some minor gods. Then, as he proves himself more and more, the major gods start to see him as a potential leader. And finally, through a grand ceremony, he is made king. Another way could be that there is a power vacuum among the gods. Percy steps in and through his strength and charisma, he is able to claim the throne.
There are several implications. Firstly, the relationships between Percy and other gods will be redefined. He may have to face challenges from traditional power - hungry gods. Secondly, his human - like qualities could influence the cold and aloof world of the gods, bringing in new values. Also, his friends and allies might gain new statuses or face new threats due to his position.
In a 'Percy becomes the king of gods fanfiction', Percy would likely face a great deal of opposition at first. The existing gods would be reluctant to give up their power and status. However, Percy's unique experiences and his strong sense of justice would help him. He could use his powers, like his control over water, in new and creative ways to assert his authority. He might also appoint new deities or give more power to minor gods who have been overlooked. This would completely change the power dynamics in the godly realm and have a huge impact on the relationship between gods and mortals, as Percy would be more sympathetic to the mortals' plight.
Percy's character would develop in many ways. Firstly, he'd gain a deeper understanding of the politics among the gods. This would make him more calculating and strategic. He'd also become more empathetic towards the gods' viewpoints, even if he doesn't always agree. His relationships with his old friends would change too. He might not be able to be as carefree with them as he used to be. Instead, he'd have to consider how his actions as king affect them and the entire demigod community. Moreover, his sense of responsibility would expand far beyond just protecting his friends and family to safeguarding the entire divine and mortal worlds.
One interesting plot twist could be Percy having to deal with the other gods' jealousy. Since he's a new king, the old gods might not be happy with his rule. For example, Zeus might try to undermine Percy's decisions. Another could be Percy using his new powers in unexpected ways, like creating new mythical creatures. And a third could be Percy facing a threat from an outside force that the old gods couldn't handle but as king, he has to find a solution.
One idea could be Percy having to face a new and powerful enemy that even the other gods are afraid of. He has to use his unique skills and connections to defeat it.
Probably Poseidon, as he is Percy's father and has a vested interest in his son's well - being. Zeus might also be protective in some cases, despite their past differences, as Percy is a hero who often saves the world which benefits Zeus's realm as well.
Well, without reading the specific fanfiction, it's hard to say exactly who Percy is. But generally, in a 'champion of the gods' scenario, Percy would be a central figure. He might be a hero with unique powers, like being able to control certain elements or having superhuman strength. He could be a character who has to face various challenges and tasks on behalf of the gods, kind of like a chosen one in a fantasy story.