Hello Toedor,
unfortunately, I do not know, when S32DS will be returned to NXP website. If you have installed or downloaded older version, you can definitely use it. But be careful about project portability. If you try to move project from S32DS v.1.0 workspace to S32DS v. 1.1 workspace, it will not work (there are changes in makefile paths).
I will contact my colleague today and ask him about any news regarding S32DS v 1.1. I hope it will be resolved soon.
Regards,
Martin