Not much is known at this time. It will be released 2017 on Netflix.
The show will follow Spirit (the son of Spirit and Rain from "Spirit: Stallion of the Cimarron" according to Aury Wallington the Executive Producer) on his adventures and a girl called Lucky making friends enjoying freedom and endless rides.
It is said that this is a series that has been inspired by the "Spirit: Stallion of the Cimarron" film and that the "Spirit: Riding Free" Spirit is not the same horse in the movie.
"Spirit: Riding Free" first poster
Spirit - The son of Spirit and Rain, a buckskin horse with a white blaze
Lucky - a young girl with brown hair
Abigail - A young girl with short blonde hair, blue eyes and a pink hairband
Boomerang - a brown pinto stallion with brown eyes
Prudence - A dark skinned girl with dark brown hair
Chica Linda - a palomino mare with a light muzzle and slightly clipped hair
Lucky's Father -
Senor Carrots - A donkey
Aunt Cora -
Possible characters in the series, according to a set of Breyer toys: