You know what? That's a really good point!
Thank you.
If this twist happens in Suicide Squad, I hope it's done well, and not just for the sake of pointless referencing of other stuff in Batman's universe. If it works for the story, great.
Exactly. Fans will hate it to death, and some will defend it much like the Mandarin twist, or the awful B'89 one, but the GA won't care. Just like they don't care about most of the comic book related things us fans complain about.
I think it is much, much worse. In B89, neither Batman nor The Joker were aware that the latter "created" the former until well into their showdown. The BS fan-fiction scenario for Suicide Squad would have this Joker be and have always been an entirely separate yet fully realised character who is absolutely key to Batman's story.
It would be difficult to imagine a greater perversion of the mythos. The Black Glove could do no better!
I don't see what difference it makes that it wasn't revealed until later in the movie. Would it help if this SS movie reveals late into the story that Joker is really Robin?
A twist, whether it's good or bad, it doesn't matter when they reveal it because once they do you know it every time you go back and watch the movie. If it's a good twist it usually enhances the movie on a second viewing because you can sometimes pick up subtle hints that point to it that you wouldn't have noticed first time around because you weren't looking for them. A bad twist just taints the movie on a second viewing because you know it's coming, you know what you're watching is spoiled for what ever reason because of the nature of the twist. Imagine watching Suicide Squad knowing the Joker you're looking at is actually Robin. It won't matter if they haven't revealed it yet in the movie when you already know they will.
For the record I think Robin as the Joker in this movie is an utterly stupid baseless idea. Like horribly bad. But to me it's not much worse having a Robin-Joker create Harley Quinn than it is for the Joker creating Batman. If anything the latter is worse in many ways because Batman, and his relationship with Joker is much more important and iconic. It feels more wrong to me having Joker create Batman, than it does for a Joker Robin to create Harley.
I don't think the film should've waited as long as it did to make the reveal. It felt like a tacked on, unnecessary, and clichéd way of making the fight between The Joker and Batman a personal one at a point where it didn't need to be.
It was tacked on and unnecessary. Tim Burton decided to put it in at the last minute during the writers strike. Even Sam Hamm, the scriptwriter of B'89, was against it;
'Many observed that Burton was more interested in the Joker rather than Batman in terms of characterization and screen time.
Comic book fans reacted negatively over the Joker murdering Thomas and Martha Wayne. In the comic book, Joe Chill is responsible. Writer Sam Hamm, who is a comic book fan, said it was Burton's idea to have the Joker murder Wayne's parents. "The Writer's Strike was going on," Hamm continued, "and Tim had the other writers do that. I also hold innocent to Alfred letting Vicki Vale into the Batcave," he reasoned. "Fans were ticked off with that, and I agree. That would have been Alfred's last day of employment at Wayne Manor." '
http://destinyosbourne.hubpages.com/hub/the-batman