New Pokemon teased through Pokemon Go?

Today the Pokemon Go community day for Oceania and Asia has ended. Niantic released the traffic for the day to show the community, but the data isn’t the only thing they released today.
Recently, Data miner, Chrales, posted on Twitter that they found images while scanning the network traffic. These are our first glimpse into the newest Pokemon said to release.
Catching the new Pokemon turns it into most a Ditto or a Chikorita, but can turn into any other Pokemon.
Kento Suga, Niantic’s head of marketing for Pokemon Go stated that this is a tease and not a mistake.
Could this be a new Generation 8 pokemon? Or an event for the new Let’s Go games?

Check out the most recent Pokemon games, Let’s Go, Pikachu and Let’s go Eevee;

Return to the Kanto region with Pokémon: Let’s Go, Pikachu/Eevee!