In one of the next versions of Gen 4, Community GO News, a dataminer, has found Gen 4!!!
All the information I’m getting is for future versions.
The last version that I took out was 1 week ago and it was 0.119.2 of Pokemon GO.
Now, I can not confirm if in that or the next one.
But Generation IV, is included!
He also found these:
For a link to his twitter, here: https://twitter.com/CommunityGONews/status/1038463923924725760
Prepare for Gen 4, everyone, and I will post his tweets here!!!