Pokemon Go Gen 4 Pokemon Timeline, Dates Included

Trainers, the very first Gen 4 wave went live on October 16, 2018, bringing 26 new Pokemon and since then we have seen 16Â Gen 4 waves.
So far we have seen six big Gen 4 waves and ten smaller ones (events, Legendary Raid Bosses, etc.).
Let’s take a look at the timeline of Gen 4 releases so far:
October 16, 2018
- Turtwig, Grotle, Torterra
- Chimchar, Monferno, Infernape
- Piplup, Prinplup, Empoleon
- Starly, Staravia, Stararaptor
- Bidoof, Bibarel
- Kricketot, Kricketune
- Buneary, Lopunny
- Shinx, Luxio, Luxray
- Riolu, Lucario
- Chatot
- Carnivine
- Pachirisu
October 23, 2018
- Drifloon, Drifblim
- Stunky, Skuntank
- Spiritomb
- Giratina (Altered)
November 6, 2018
- Budew
- Buizel, Floatzel
November 14, 2018
- Rhyperior
- Magmortar
- Electivire
- Mismagius
- Gliscor
- Porygon-Z
- Honchkrow
- Weavile
- Roserade
- Togekiss
- Dusknoir
November 20, 2018
- Cresselia
December 18, 2018
- Bronzor, Bronzong
- Skorupi, Drapion
- Croagunk, Toxicroak
- Finneon, Lumineon
- Snover, Abomasnow
- Chingling
- Munchlax
- Mantyke
- Heatran
January 29, 2019
- Palkia​
January 31, 2019
- Ambipom
- Lickilicky
- Tangrowth
- Yanmega
- Gallade
- Froslass
- Cranidos, Rampardos
- Shieldon, Bastiodon
- Combee, Vespiquen
- Glameow, Purugly
- Bonsly
February 16, 2019
- Happiny​
February 16, 2019
- Mamoswine
March 2, 2019
- Dialga​
April 2, 2019
- Giratina (Origin)
April 29, 2019
- Legendary Lake Trio (Uxie, Mesprit, Azelf)
May 17, 2019
- Burmy, Wormadan, Mothim
- Cherubi, Cherrim
- Gible, Gabite, Garchomp
- Hippopotas, Hippowdon
- Shellos, Gastrodon
- Leafeon, Glaceon
- Magnezone
- Probopass
Go Fest Chicago June 13-June 16, 2019
- Jirachi Dual-Type Steel/Psychic Mythical Pokemon – Gen 3
After June 28, 2019
- Deoxys Speed Form Psychic-Type Pokemon – Gen 3
Now, let’s see the list of “Not yet Released” Pokemon below.
Gen 4 Pokemon yet to be Released, Gen 3 Pokemon Included
- Kecleon: Normal-Type Pokemon – Gen 3
- Mime Jr: Dual-Type Psychic/Fairy Pokemon –Â Gen 4
- Rotom, Heat Rotom, Wash Rotom, Frost Rotom, Fan Rotom, Mow Rotom: Dual-Type Electric/Ghost Pokemon – Gen 4
- Regigigas: Normal-Type Legendary Pokemon – Gen 4
- Phione, Manaphy: Water-Type – Gen 4
- Darkrai: Dark-Type Mythical Pokemon- Gen 4
- Arceus: Normal-Type Mythical Pokemon – Gen 4
- Shaymin (Sky), Shaymin (Land): Grass-Type Mythical Pokemon – Gen 4
There are no details about a new Gen 4 wave happening anytime soon, but we expect to see a new wave at the beginning of September 2019. More info to follow, so stay tuned.
I think they’re saving the hippos for the GO Event in Chicago. You can see them in the picture advertising the event.
I think Jirachi is Gen 3, not 2.
Hello and thanks for the comment. Yes, you’re right, Jirachi is Gen 3. We will update it immediately. Thanks for noticing!