The official update has updated with various Dream Park details. First, it has announced 8 of the Pokémon to be found in the area. These Pokémon are Pinsir, Heracross, Seedot, Shroomish, Timburr, Throh, Sawk and Scraggy.
I hope your body is ready
Now lets hope I'm right with Litwick appearing here or in the manor.