Originally Posted by psylockolussus
For me, she has to be a mutant just because this movie is still set around the X-Men universe. So they are either a mutant or a human. Plus it makes things less complicated and easier to understand. Though I don't think she was a mutant in the comics.
I don't think she necessarily HAD to be a mutant. It would be equally good to see a human who can match a mutant's powers and prowess through sheer skill, training, technology, experience and intelligence.