If it's a seal, and it's written down somewhere, then it's possible Naruto could learn it. If Kakashi survives, I guess he could help. My only question is why he didn't use it. If the Rasengan is any inkling, it's because Kakashi couldn't for some reason.
Originally Posted by Kyuubi XZ
A jutsu so powerful that it causes flee on sight orders, one would think that should be taught to those who can. However, we see that clans keep their jutsu within the clan. Shikamaru's jutsu I'm sure Kakashi could learn. This "Body Flicker" jutsu could be something left behind for Naruto to be learned when he's ready. Jiraiya was a master of seals (He understood the Kyuubi seal, five-prong seal, and sealed Ameratsu), so I'm sure he tried to understand it if he saw a seal. He may have tried to teach it to Naruto, but who knows. It would be cool after the battle if Tsunade gives Naruto a kunai with a seal, and says "The Hokage was to give this to you when you were ready. This belonged to your father..." That would make a great entrance as to his heritage without it randomly coming up, "By the way, before the mission, your father was the fourth."
After the Itachi/Sasuke fight, Madara told Sasuke the "truth" about Itachi, Uchiha, and Konoha. It's likely that after this fight Kishimoto spends time informing Naruto/us about his father. A simple line like, "Your father would be proud..." That's a little off course.
Great pickup on that seal on the foot, I missed that as countless others did.worshippy