I still bet they'll revisit the series again. For nostalgia-sake and some extra $$$.
If they did a really good mini series for an anniversary, old school fans would love it! I'm still betting that they'll cash in on the nostalgia at some point.
At one point they will because Naruto became a brand. It transcended beyond just being a manga. It's a brand and they will use that.
The question now is when? And also will they learn their lesson? There would be no point in making something new if they just do the same thing.
The definition of insanity is doing the same thing and expecting a different result.