Avatar: The Lost Earthbender

A new era of Avatars has started and Korra is the last Avatar from the first era and the firt Avatar of the second era. She has changed the world a lot. Spirits and humans live together in peace and can enter and exit their worlds trough the spirit portals. But sadly, her time has passed and there is a new Avatar reborn in the Earth Kingdom. But why isn't he/she shown yet?