Immerse yourself in the beautiful Leneka Region and discover tons of new wild Pokémon around every corner. Build your favorite team of Pokémon and battle your way to the top by challenging experienced Gym Leaders throughout the region. Encounter mythical legendary Pokémon and keep those who seek to do harm from reaching their goals! You’ll face many challenges along the way, but if you work hard enough, you will succeed in your quest to be the greatest Pokémon trainer ever!

(Taken from Pokecommunity Thread)

(All Images from Ethereal Gates)