UPDATE: Four new characters and their missions should be up within the next 24 to 48 hours. Also look forward in the next week or two for at least three more characters to be added.
Firstly, please stop sending me or other admins PM's asking for "Itachi and Kisame to be put back in the game." They never were in the game. All that ever existed for them was a picture so they were not playable characters at any point. That being said, Akatsuki and Shippuuden characters are planned to be introduced when we are ready to do so.
Secondly, 4 new characters will be introduced in the coming weeks. No, they are not Akatsuki or Shippuuden, but they are characters many have asked for (not filler characters).
Thirdly, due less to balance and more to the "cheapness factor" Kyuubi Naruto's skill are being tweaked. These changes shouldn't affect his overall power but should curb his abusability.
Fourthly, Corrupt Chidori actually does 154 damage during CS2 not 99. I have tested this to be sure. Also the CS icon now appropriately shows when both are active. Goukakyuu no Jutsu's damage has been boosted during CS1 and CS2. (Note that Corrupt Chidori was not changed. it ALWAYS did 154 damage. It was a miscalculation on my part.)