Cameron MIGHT be Joker in Season 5?!? Another "Gotham" petition is up too!

As we now know, "Gotham" will get 12 episodes for its fifth (and sadly final) season. Earlier this month, Cameron Monaghan Tweeted about "Gotham": "For those of you wondering if we're doing the thing... Yeah, we're doing the thing. We're doing things you didn't think we would be doing. We're doing all the things."  While we know Batman will also appear in costume in the series finale episode, is Mr. Monaghan referring to Batman appearing on the show, is he referring to becoming the Joker, or is he referring to both?  Aside from this cryptic Tweet, Mr. Monaghan also shared a photo of himself with David Mazouz (Bruce Wayne) and Sean Pertwee (Alfred Pennyworth) which apparently shows Jeremiah Valeska with at least some green in his hair.  Does this mean we will Mr. Monaghan fully become the Joker in the show's final season?  Whatever this means, we may be seeing the Clown Prince of Crime on "Gotham" in some form after all.  I've included the Tweet and photo, which were posted separately on different days, in this update.

To those who are interested, I've also created a free-to-sign petition that asks Warner Bros. and Bruno Heller to either keep making new seasons of "Gotham" on a new network or to make a spin-off series, based on either the Penguin (played by Robin Lord Taylor) or about Batman himself, with all of the cast and crew members from "Gotham" returning.  This petition can be found here:

https://www.change.org/p/warner-brothers-continue-gotham-past-its-fifth-season

Thank you all so much for your support and I hope you all are having a wonderful night.