I have a look at the series at netflix I know that it is actually only 1 season but at netflix are divided so my question about season 3 aka 2
No.
Kuromukuro was selected for the 15th anniversary of the animation studio P.A. Works produces and is an original with as far as I know a round end, therefore rather not.
If you like SciFi, I still recommend ID-0, it's also available on Netflix.
I think nothing comes but it would be cool the end was so open