what he means is that its going to be a start of a new era where naruto is around 5 and same with sasuke........ Kakashi and Yamato is now all grown up to become mentors themselves. Itachi is now in the anbu and soon will start the uchiha massacre and this is the start of the Naruto Series..... Soon naruto and sasuke and sakura will meet kakashi and they will all wipe the floor with Zabuza and Haku.... Such nostalgia.