>>39415272Generation 1 isn't any different from other gens and the novelty effect you attribute to it can be easily replicated by making a brand new dex and culling the previous pokemon.
However, as was demonstrated by Unova, this would not only quickly result in creative bankruptcy, but also lead to a very shallow and boring experience for the player, who would keep running into the exact same pokemon over and over again, ruining any sense of exploration and progression.
If anything, the games should not prioritize any gen over the other and instead try to include as much of them as possible as well as improve the gameplay to the point that even catching a mon you already know would feel like a brand new experience.
