John Stephens also mentioned in his chat with TV Guide that the Gotham version of Harley will be a "launching point" for a lot of the action in Season 4, so we can probably bet that she'll get quite an entrance in the Season 3 finale. Of course, Gotham has not yet been renewed for a Season 4, so we can only cross our fingers and hope that Fox will order another season and give fans the chance to see Gotham's twist on Harley Quinn. Ratings haven't been great, but they also haven't been terrible. It should be interesting to see if the upcoming interactions between the Joker and the future Dark Knight will attract more people to tune in for the second half of Season 3.