With the development of a new Wonder Woman series called "Amazon", there is some talk of a crossover. Here's what executive producer Andrew Kreisberg says...
Our show definitely takes place in a much more realistic world. There’s no superpowers, superheroes and aliens. With Wonder Woman, Diana of Themyscira, there are superpowers. I don’t foresee crossovers but one of the great things about superheroes is that they’re constantly being reimagined. There’s the Adam West and Christopher Nolan versions of Batman and one doesn’t obviate the other. The Lynda Carter version was great and now the CW is hopefully developing another wonderful version that will be a nice compliment to Arrow.
And here's what Stephen Amell says...
As long as she doesn’t have superpowers, then we’re good!
Read the article here