User blog comment:Eobard95/(Speculation) Truth behind Black Siren return?/@comment-27700324-20170629150548/@comment-24152851-20170630100032

Well in that case, she will always be a disappointing addition. It makes absolutely no sense a person with an identical name who happens to be heavily similar to the daughter of said person showing up when Oliver needed her too.

Arrow is usually too grounded to pull off something like that, but I would be more satisfied if they went that direction with Dinah.