Hi, Marko. Yes, the freehub body takes a 11sp Shimano cassette and a 10-speed one with a 1.85mm spacer. I'd reckon the weight to be somewhere around 1000g (with tubeless / Gorilla tape and valve), I can measure it later when I get home this evening.
Edit. It seems that my scales has a minimum threshold beyond the weight of the wheel, so it doesn't give a value. When calculating the weights of the individual parts, it should come around 1000g, I think.