One idea could be a story where Godzilla and King Ghidorah have to team up against an even greater threat from outer space. This would force their natural enmity aside as they realize the common danger.
One idea could be a crossover with Godzilla. King Ghidorah teams up with some other kaiju to take on Godzilla in an epic battle across multiple cities. They could use their different powers in unique ways, like King Ghidorah's gravity beams against Godzilla's atomic breath.
One idea could be a story where Godzilla teams up with other kaiju to fight a new, more powerful alien threat. This would be exciting as it shows Godzilla in a more collaborative role.
One idea could be Godzilla teaming up with other kaiju from different universes to fight a common, powerful enemy. Maybe an alien force that is threatening all kaiju-kind.
A fanfiction could explore the idea of Shin Godzilla having a more sentient side. Maybe it tries to communicate with humans through some form of telepathy. The story could then revolve around the humans trying to understand what Godzilla is trying to say and if they can co - exist. For example, Godzilla might be warning about an upcoming natural disaster that only it can sense due to its connection with the earth.
It's really hard to say. Godzilla has his atomic breath and great strength, but King Ghidorah has three heads and can fly. In a straight - up fight, if Godzilla can get in close and use his physical strength, he might have an advantage. But if King Ghidorah can keep his distance and use his aerial attacks and energy beams from all three heads, he could be the victor.
One possible plot could be about how the other kaiju react to King Ghidorah's pregnancy. Maybe Godzilla would be initially shocked and then start to consider if this new situation changes the power balance among them.
One idea could be that they team up to protect their offspring from other monsters. It would show a more nurturing side of these usually fearsome creatures.
One plot idea could be that Godzilla somehow gets transported to the Star Wars universe. Maybe the Empire tries to capture and weaponize it, leading to a big showdown between the rebels and the Empire over Godzilla.
One idea could be a story where Mechagodzilla is initially built to protect the city from Godzilla, but then they discover a common enemy that forces them to team up. Maybe an alien force arrives that threatens both of them and the planet. So they have to put aside their differences and fight together.
One idea could be a story where Godzilla teams up with other kaiju from different universes to fight a new, super - powerful alien threat. This would bring in a whole new level of epic battles and interactions between the various monsters.