If that’s the case, then I could see Universal just going back to drawing board, wholesale. If it already requires redesigning the SNW plot, you might as well look at the Fantastic Beasts slot too.
Based on the rumored rides for Beasts, I’d actually turn THAT into Pokémon. Convert the MoM into Rocket Tower OR Pokémon Tower in Lavender Town, and turn whatever interactive Newt thing they had planned into a Pokemon Safari or whatever. Build out a little into the neighboring expansion for a play area and couple of flats, instant Poke-land.
Then go wild on the SNW plot.