>>49384768BW remakes will have everything contained to BW, with maybe a more reworked version of Entralink and Black City/White Forest. Meaning, no B2W2 areas, facilites, characters, changes, or new pokemon beyond Gen 5. It will also have QoL features like portable PC, following pokemon, something to replace HMs with and trainer customization (probably accessible at Nimbasa City). Battle Subway will be there, because it's in the original BW and there's no way GF will doublecross the fujo audience by omitting Ingo and Emmet. Also, either no Dreamworld or a gimped in-game version of it that let's you catch older pokemon.