I can't find the exact topic but some weeks ago in a similar topic we did some calculations and at the current speed the anime catches the manga around anime ep ~200 / manga chap ~350. So no need to worry. That's 3 possible years of naruto yet to come.

And to the season thing the first poster talked about - they just started a new 26-season with 53. So even if they stop after this season for a while it still goes on till 78.