Quoted By:
>2006
>as part of Pokémon's 10th anniversary, Diamond and Pearl introduces many evolutions for many shitmons that really needed it (with exception of Kirlia/Gardevoir and Eevee)
>most of them were or are still viables nowadays
>2016
>as part of Pokémon's 20th anniversary, Sun and Moon introduced regional variations of Gen 1 Pokémon that only change its stats, abilities, minmax their stats, and call it "a new Pokémon"
>10 of the 18 regional variations are fully evolved Pokémon and only 3 of them are viable (Ninetales, Muk and Marowak)
Will be ever get cross-gen evolutions again? Ten years ago nobody thought that Pokémon like Tangela, Sneasel or Piloswine would be viable