Well, in the fanfiction, their reunion could lead to them teaming up. Maybe they decide to take on a powerful enemy together. They'd combine their skills, with Ace's fire powers and Sabo's fighting abilities, and create a formidable force. They'd also probably have some deep conversations about their past and how much they missed each other.
It could shift the power dynamics. Their combined strength would make them a significant force. Enemies might be more cautious or new alliances could form.
One possible plot could be a grand adventure where they team up to take on a powerful enemy that threatens the safety of their hometown. They could use their combined skills and the strong bond they share to overcome challenges.
Their reunion would likely cause a stir in the pirate world. Other pirates would see them as a very powerful group. It could also inspire many young pirates to strive for stronger bonds with their comrades, just like Luffy, Ace and Sabo.
One great 'Ace Sabo Luffy Fanfiction' is 'The Brothers' Bond'. It beautifully explores their relationship, showing how they support each other through various challenges. Another one is 'Sabo's Return'. It focuses on Sabo coming back into Luffy and Ace's lives and how they all readjust. There's also 'Ace and Luffy's Adventure', which takes the three on a fictional journey filled with action and heartwarming moments.
Another interesting one is 'Sabo's Return: With Ace'. In this story, Sabo returns much earlier than in the original story. It details how he and Ace reunite and the impact it has on the Straw Hat crew and the overall One Piece world. The story is full of action and heart - warming moments between the two.
One possible plot could be that Ace has been through some tough battles and has been missing Sabo for a long time. When they reunite, there are immediate hugs and tears of joy. They then sit down and share all their adventures that they had during their separation.
Well, one possible future for them in Marine fanfiction could be that they form a special unit. Ace with his fire power, Luffy with his rubber abilities and Sabo with his skills would be a formidable team. They could be sent on special missions to deal with the toughest pirates. This way, they are still following their dreams of adventure while being part of the Marines.
Well, it could be that in certain fanfictions, the writers are trying to explore 'what - if' scenarios where Ace and Sabo have some sort of falling out with Luffy. It might be because of jealousy, perhaps they think Luffy is getting more attention or something. But really, this is a huge departure from their normal loving relationship in the main One Piece story.
Friendship is a very common theme. Their bond as brothers - in - arms is often explored in great detail. Writers like to show how they support each other through thick and thin.