Well, it could lead to a completely different storyline. Maybe Anakin wouldn't gain the recognition and opportunities he did, and his path to the dark side could be altered.
Well, it could lead to all sorts of changes in the story. Maybe they'd be even stronger together and face different challenges.
Well, it would be a wild twist! Their relationship would likely face opposition from the Jedi Order and maybe even from their enemies. It would add a whole new layer of conflict and emotion to the story.
In a fanfiction where Rey meets Anakin, one possibility is that Anakin would see Rey as a symbol of hope for the future of the Jedi. He might take it upon himself to train her in the ways of the Force more deeply, sharing his own experiences both good and bad. Maybe he would guide her in how to avoid the dark side's temptations that he himself succumbed to.
The Jedi might have been really shocked and it could have led to major consequences for Anakin. They might have seen it as a violation of their code and taken severe actions.
If the gods read the 'Lost Hero' fanfiction, they might be amused. They could find some interpretations of their characters quite creative or, on the other hand, completely wrong. Maybe they'd be angry if the fanfiction depicted them in a negative or disrespectful way.
In such a fanfiction, Anakin would likely remain a Jedi. He would continue to fight for the Republic and the Jedi Order. He might have a more positive influence on the Clone Wars, perhaps finding a way to end the conflict more peacefully. His relationship with Padmé would also be different, not marred by his fall to the dark side.
Well, he might be shocked by the advanced technology. Maybe he'll see flying cars and buildings that touch the sky. He could also encounter new forms of the Force that he doesn't understand. And perhaps he'll meet descendants of his friends or foes, which would be really interesting.
In this fanfiction, Luke might initially be in awe of meeting his father, Anakin. He could be conflicted between the image of the evil Darth Vader and the redeemed Anakin he has heard about.
Well, it could be that Anakin and Ahsoka meet in a dangerous situation in the fanfiction. They would then have to work together to get out of it. For example, they might be trapped on an unknown planet filled with hostile creatures. They'd use their combined skills, Anakin's raw power and Ahsoka's agility, to fight their way through and find a way back home. This kind of scenario would not only show their relationship but also their growth as characters since they last parted ways.
In this kind of fanfiction, Anakin might have an internal struggle. He could be shocked to see himself and start to question his own life choices. Maybe he would try to change the past by giving advice to his other self.