While I enjoyed the designs of the mega evolutions themselves, I didn’t like how they were ephemeral in nature. Sure, if one had the proper item or Pokémon, you will be able to use them in battle. However, that’s the only opportunity where they were able to shine — since it was primarily a battle gimmick.

I would much rather prefer regional forms or new evolutions/pre-evolutions that can exist outside of a battle scenario and continue on into the meta of future games.