Sadly, they don't seem to have plans of putting up DLC for this game. I wish Guren, Shizune, Sora, Zetsu, Hiruko form of Sasori and the other Jinchurikis are also playable, as well as the awakened mode of each character (can be selected from the start, offline only though). And a training mode is also helpful to polish the combos and strategies. How come the PSP version of Naruto games almost always have training mode? And then this one doesn't?
And the customizable jutsus and support jutsus are also welcome. Hopefully, Ultimate Ninja Storm 3 will have the combined features of 1 and 2 plus all the great suggestions in this forum.
Still, UNS2 is such a great game!