Do you think that Greninja, along with his Ash-Greninja Bond Phenomenon will reappear in Pokémon Scarlet and Violet because of its popularity among fans? Why? Please let me know, thanks.
I don't think that the gen VI starters will be available in Scarlet and Violet, which includes Greninja. I have no real reason for this other than we have no idea what Pokémon will or won't be making a return and it's far too early to speculate.