The official website for the new revealed anime Shaman King that the series will have four Blu-ray box sets, each containing 13 episodes, for a total of 52 episodes.
Therefore, the anime premiered this Thursday. Netflix will stream the anime worldwide later this year.
The new Shaman King anime will adapt all 35 volumes of the new complete edition of the manga that Kodansha began publishing in print volumes in Japan last June.
Finally, the first anime adaptation arrived in 2001.
Source: ANN