All the Gen 7 Pokemon That Could Be Coming to Pokemon GO

gamerant.com:

During the Pokemon Presents stream that was held on the franchise's 26th anniversary, Niantic took to the virtual stage to show off a brief teaser trailer. With Pokemon GO’s Season of Heritage having just ended, players now know that the Season of Alola will dominate the mobile title for the next few months. Between March and June, creatures that debuted in the 7th generation games like Pokemon Sun and Moon will slowly be introduced into the mix as a result.

Unlike previous generations, follow-up games that released after Pokemon Sun and Moon such as Ultra Sun, Ultra Moon, andLet's Go Pikachu! and Eevee!, all expanded the Pokedex further. As a result, 88 creatures and 18 regional form variations were introduced in the games that made up the franchise's 7th generation. While Niantic has already added some of these, such as Meltan, Melmetal, and every Alolan form, there's still a substantial number out there that the studio could add to Pokemon GO between now and June.

The Case For Pokemon Difficulty Settings

For Pokemon GO's Season of Alola, Niantic is dedicating several weeks of the event to each of the region's Hawaii-inspired islands. Special research and Pokemon found on Melemele Island, for example, will be in the spotlight between now and March 22. It’s possible that creatures indigenous to each island will be added into the game, as the focus shifts to other areas. While it’s worth keeping in mind that Niantic won’t add every Pokemon into the mix straight away, as evidenced by the ongoing absence of generation 3’s Kecleon, it’s only a matter of time until every creature is available.

As it stands right now, most of Melemele Island’s 7th generation Pokemon have been added in Pokemon GO via the first wave of content.