Objectively BDSP could be really good all things considered. Even if it’s just Pokémon’s 1-493 with QOL of Nu Pokémon
> Nu age Exp Share
> Access Box anywhere
> Exp for capturing Pokémon
> Ability to send excess eggs to PC Box
> HMs in form of abilities(if not guess Floatzel and Bibarel are on mah team)
> Events for Darkrai, Shaymin, Arceus(confirmed by Npc in Floroma Town)
> Origin Giratina / Sky Shaymin
> Pokétch confirmed through official art

Even if they end up just as reskinned DP it’ll be fun to replay with the QOL of Nu Pokémon and it’ll definitely be fun to replay the competitive Meta with only the old Pokémon.