According to Jump Kai magazine, action adventure manga series, Shaman King Flower will return this April 2012 in the said magazine.

The manga series’ first chapter released June 9, 2009  in the Shaman King fanbook “Mentalite” and it was never serialized.

The manga takes place 10 years after the end of Shaman King Kang Zeng Bang and focuses on the life of Hana Asakura, the son of You Asakura  in his teenage years. [MAL]

[Source]