When Niantic first launched Pokémon GO, it was populated exclusively by first generation Pokémon, but a lot has changed in the two years since then. Pokémon from Johto and Hoenn have been rolled out, as well as Alolan Forms of Kanto Pokémon. Fans of the fourth generation (like myself) have been eagerly anticipating the addition of Sinnoh Pokémon, and it looks like the wait is almost over.
In celebration of the recent two year anniversary of the popular mobile app, The Pokémon Company tweeted out to ask fans to share their favorite memories playing the game. This message was shared alongside some artwork which shows several Diamond / Pearl monsters, including Piplup, Chimchar, and Turtwig, the three starter Pokémon of Sinnoh. It looks like Gen IV is on the way soon!