His relationship could change in terms of training. Ash might start to incorporate some of Giovanni's more strategic training methods (assuming he learns about them). However, his Pokémon might be resistant at first, as they are used to Ash's traditional and more friendly training style. But over time, they could adapt and become even stronger. Also, Ash's Pokémon might have to deal with new rivals associated with Giovanni, which would test their loyalty and determination to stay with Ash.
The bond between Ash and his Pokémon could become more complex. There could be moments of doubt among the Pokémon, wondering if Ash will be influenced by Giovanni's ways. But Ash's love and care for his Pokémon would remain strong. He would have to work hard to reassure them that he is still the same Ash. The Pokémon might also play a role in helping Ash come to terms with his new identity as Giovanni's son. They could provide emotional support and even help him make decisions about how to handle this new family connection.
Ash's relationship with his Pokémon might become more complex. He could start to question if his Pokémon would still be loyal to him if they knew about his connection to Giovanni. Some of his Pokémon might be wary at first, but over time, they would probably stay by his side because of their bond with Ash.
If Gastly was Ash's starter, his relationship with his other Pokémon might be more diverse. His non - Ghost - type Pokémon would have to get used to Gastly's spooky nature. For example, Bulbasaur might be a bit cautious at first. But over time, they would all learn to work together. Ash would also have to be more creative in his battle strategies, which could bring him closer to all his Pokémon as they adapt to new ways of fighting.
Ash might become more conflicted. He has always been on the side of good, but with Giovanni as his father, he'd have to grapple with his family ties. He could become more secretive and brooding as he tries to figure out how to balance his own values with this newfound family connection.
His Pokémon might be really confused at first. They're used to Ash as a human, so seeing him as a Pikachu would be quite a shock. But some of them, like Pikachu himself, might feel a closer bond since Ash is now in a similar form.
His relationship with Pikachu might become a bit more complex. Pikachu could feel a bit jealous at first because Ash is spending a lot of time getting to know and train Meltan and Poipole. But as time goes on, they all learn to work together. Ash's other Pokémon like Bulbasaur and Charmander might also be a bit curious about the new members. They would start to interact more with Meltan and Poipole during training sessions, which could strengthen the overall bond within the team.
The story would likely become more about Ash's internal struggle. As a Pokémon, he'd view the world from a different perspective. His goals might shift from winning badges to something more related to Pokémon survival or acceptance. For instance, he may strive to prove that Pokémon with human - like intelligence deserve better treatment.
Their relationship would become more mature. They would have to rely on each other more than ever. With a baby, they'd have to share responsibilities, which could lead to a deeper understanding and respect for each other.
Their relationship would likely become more domestic. They would have to rely on each other more for the care of the baby. There would be more shared responsibilities, which could strengthen their bond.
At first, his Pokémon would be startled. They've always known Ash as a human. But then, they would start to adapt. Some Pokémon, like Squirtle, might try to play with Ash in his new form, thinking it's a new kind of game. However, his more loyal Pokémon, like Greninja, would be determined to find a way to turn Ash back. Greninja might use its special bond with Ash to try and communicate with him on a deeper level in this new form, to understand what happened and how to reverse it.
Ash would probably become more patient. Rangers often have to wait and observe Pokémon in their natural habitats. This is different from his Trainer days where he was more focused on quick battles and leveling up his Pokémon. He'd also be more diplomatic, since he'd need to work with other Rangers and people in the Pokémon world who might have different opinions on conservation and Pokémon management.