It's looks interesting and again the protagonist is not Japanese or Asian.
To be honest it doesn't really matter cause she's a cyborg and "Makoto Kusanagi" was really just the name that they gave her. Cyborgs don't have a ethnicity and in reality Ghost In the Shell has little care about such simple differences. It's preferably why Mamoru Oshii,the director of the original GOTS anime voice his support for this movie.