If so when will it be available when?
You don't know, but it could be, the last episodes of Naruto Shippunden came recently.
If you're looking where to watch it, it's free on TV Now
A series will be available in Netflix exactly when Netflix has successfully negotiated the series with the current rights holder and is then allowed to use the series in certain regions of the world.
At the moment as of April 2021 nothing is officially known.
Maybe in 2-3 years.