It was said they come out on January 15th but they are not there
UPDATE (January 15, 2021): After the notice was removed from Netflix on January 14, 2021, the series was not supplemented by any further episodes on the SVoD platform today. When asked, Netflix has not yet been able to give us any information. It is currently unknown whether and when the previously specified new seasons will be released.
https://www.pattotv.de/animenews/neue-naruto-shippuden-staffeln-bald-auf-netflix/
Do not worry, they also withdrew with the House of Money. The Habens postponed for half a year. With Naruto - when it wasn't yet available on Netflix - I always noticed that it supposedly comes out then and then - in the end, of course, it wasn't like that and I waited about 1 1/2 years for it to finally open Netflix could be streamed.
Conclusion: you can only wait
