Guren is in China right now. She was a ninja you could get then five star during the fall (a three month long event if I remember correctly) along with ramen Naruto (as I call that one version of Naruto with the ramen mystery). And Zaku of the Hidden Sound is also in China. Not sure when he came out.

Either way, some of these ninjas may or may not come. The only ones that have a high chance of not, and going by recent copy right issues, are the movie only ninjas.