As circulated and become acknowledge by Super Sentai fans around the world, the 39th Sentai team is pretty much revealed. Trademark has been registered in Japan for a title of Shuriken Sentai Nin’ninger (手裏剣戦隊ニンニンジャー).
The name suggest this will be once again Ninja related theme. The 3rd ninja theme in Super Sentai world. The first is Kakuranger and then Hurricaneger. Even Shinkenger can be quite close to this theme. Toei seems will always champion hot selling theme such as Dinosaurs, Police Force, Martial-art and Ninja-theme into super sentai line up. Let's hope with the success of Kyoryuger where they recycling Dinosaur theme into a good one, the 2015 Super Sentai Nin'ninger will also get the same achievement. Let's hope and see for further details which going to occurs very soon.
Speculation and illustration for 2015 Super Sentai - Shuriken Sentai Nin'niger and the title trademark registration:
UPDATED: Official Cast is HERE