No, he shouldn't. Any writer should finish their story when they feel done, not make more because the fans want it. That is, in the end, bad for the writer and the fans because the heart wouldn't be there. Besides, Naruto is REALLY long anyway. Instead of wishing for more, you should appreciate what you have because it's quite a lot. Be happy he could tell the story he wanted. He's not just relaxing and enjoying his fortune. He told the story he wanted and finished it as well.
Interesting video. Not a good one at all, but it is a good idea.
Anyway, Naruto has a special place in my heart too.