Pitch your sequel concepts.
Theme, location, new forms, mechanics, anything.
If pokemon red/blue/yellow take place in the mid 90's. I think seeing Kanto in the late 70's or 80's could be interesting.
>allows them to fully shuffle the gyms
>young oak, agatha, blaine, giovanni
>team rocket during its inception.
>the Mew/Mewtwo project
>no Safari zone yet
>sevii Islands
>pulling any ideas they want from the anime
>still a few gen 1 pokemon due to new forms/evos, but you can really put whatever there and nobody would truly complain
That's just off the top. There's a good deal of stuff to play with.
>'le KANTOOOO!!!!'
If you could make it different enough, yes.