Pokemon Go Throwback 2020 Celebration Event

We will be witnessing another Gen-themed event called Throwback 2020 Celebration event, with spawns of various Pokemon from each Gen.
This was told by the PokeMiners, and according to them, it will be an event in which there will be an array of previously released Pokemon from the Kanto, Johto, Hoenn and Sinnoh region.
We guess that this event will be divided into 4 parts, based on the regions.
RESOURCE ID: throwback_2020_celebration TEXT: Throwback Challenge 2020 Celebration RESOURCE ID: throwback_2020_kanto_event_name TEXT: Throwback Challenge 2020: Kanto RESOURCE ID: throwback_2020_johto_event_name TEXT: Throwback Challenge 2020: Johto RESOURCE ID: throwback_2020_hoenn_event_name TEXT: Throwback Challenge 2020: Hoenn RESOURCE ID: throwback_2020_sinnoh_event_name TEXT: Throwback Challenge 2020: Sinnoh
A new event called Throwback 2020 Celebration has been pushed, along with a 5 pack of Remote Raid Passes, and confirmation that remote raids will do boosted damage. Check it out!https://t.co/xVrzL8nPvE
— PokeMiners (@poke_miners) April 21, 2020
This fun Throwback 2020 Celebration Event is expected to be seen in Pokemon Go in the near future.