If so, where and will season four be on Netflix?
On Wakamim with subscription
The fourth season is not yet available with German dubbing (should come this year). You can see them with German subtitles on Wakanim. When and if Netflix will get the season at all is not yet known.
I think he means GerDub
There's no 4 season on ger dub
The 4 season is not yet available on ger dub