Let's say it's August 2019 or around that Timeframe
The Pokemon can talk to each other, But Humans cannot understand them, Though the Pokemon can Understand Human Speech
Former Humans Still have the Same Feelings and Memories
There are No Legendaries
Some Areas are More Affected than Others Such as
Behind the Rocky Mountains (Or Basically West Coast of US)
New England And Lower Canada (Majority Eevons / Eeveelutions)
Siberia and Manchukuo (And East Coast of Russia)
These Areas Are almost 99% Pokemon.
The World is Thrown into a state of Chaos.
PS: If you don't know Pokemon, They Are Basically OP Animals and Could Kill humans Easily
they Have Elemental Powers (like Fire Powers, Water, Electric Etc, like one could Easily light a House on Fire)
they can be Very Deadly, But they have feelings and are former Humans with minds like one.