Mega Evolution reworks, including new cooldown, seemingly coming to Pokémon Go

It looks like Niantic may finally be reworking the heavily-criticized Mega Evolution system that was introduced to Pokémon Go in August 2020. 

In data pulled from several new APK backend updates for Pokémon Go via datamining group PokéMiners, text for several new mechanical changes for Mega Evolution is fully detailed, including the addition of Mega Levels and Free Mega Evolution.