User blog comment:Rafe Adler/What character would you like to see appear in the Arrowverse/@comment-4588264-20151115010524/@comment-28835160-20151115011250

I agree on the Supergirl part. That would add more to the universe. We have metahumans, magic, and all we really are missing is aliens. Plus I kinda want to see how Diggle would react. Also aliens being in the universe could pave the way for Green Lantern and others.