Board Thread:Naruto Discussions/@comment-3279282-20141007134927/@comment-3279282-20141101220208

Important information that I somehow missed:

In the databook's preview it is stated that "the introduced character data in this book goes up to chapter 691 (10th October)". That is why Naruto is still 16 years old in the preview. So the sentence earlier about how the databook covers everything from Pain's attack to the end of the war is true. It doesn't cover the final 9 chapters, lol.