Not if it's done in a tatesful way. I take it you have never read a manga series where a time jump has happend. Ifit's doen right you kind of relearn the character again fairly fast. liek in the first chapter if not in the first five pages. If we don't reconect with the characters after a year and half to two years down the line story wise. Kishimoto sensei is really dropping the ball, again.