>>43659160Likely not, because all assets would have to be updated for the new game. Like look at those mods where people throw Let's Go/3DS models in SwSH, and noticed how the monsters just flat out don't reflect light in the same way as everything else on-screen. That is because SwSh's monsters had new textures and shadowmaps developed for their new lighting engine specifications in mind. It's the reason that during Dynamax the lighting of the models stays consistent around the rims no matter what angle the camera takes and etc.
The 3d models of old Pokemons might've been done, but they still had to work on everything else related to their presentation in SwSh (they didn't in Let's Go though, in Let's Go they're using the same specifications used in the phone Go game, so that was a literaly copy and paste job.)
Plus some Pokemons have little fixes on the geometry there and there, specially in round parts that maybe couldn't be as round and curvy as they wanted in 3DS hardware.
tl;dr GF is shit but theyre not THAT shit