Yes, Batman does

It was a mad rush, tracking down Dick. First, Batman had decided to call Oracle to see if she could find Joker’s henchmen, but when he got no response, he booked it to Oracle’s Clocktower base. When he burst in, he found Oracle tied up by Joker’s henchmen, and quickly disposed of them. Oracle told Bruce what was going to happen to Dick, and showed him the live footage of Joker explaining his plan of Dick. However, the idiot seemed to forget that having that sort of thing can get you tracked down, and so with Oracle pinpointing where the Joker’s lab may be, Batman took off, with Oracle keeping track of what was happening to Dick (with dummy footage so that Joker couldn’t tell what had happened on Oracle’s end.) After fighting a small horde of henchmen, he found himself atop of where the signal was coming from, and so using miniature c4 charges, blew right through the roof.

Before the transformation could be complete, the roof of the underground laboratory busted open, and down came Batman. Moving swiftly like a man possessed, Batman tossed a batarang at the Joker, knocking the Clown ****. Batman then ran to Dick and pulled of The Boob-Tube, and turned the gas off before pulling the mask off of Dick. Can’t risk breathing in any of that substance, thought Batman. Untying Dick, Batman was horrified at what had happened to his adopted son.

His, well her now, eyes were wide open, flickering quickly, but it was as if the soul they once held wasn’t there... at the moment. Physically, it was just as shocking. Dick had fully become a woman, but hadn’t fully become Harley Quinn. Her body resembled Quinn’s well enough, if too tall (Dick had been 5’11, while Harley was only 5’3,) and too muscular (Dick was very muscular, while Harley had only been fit.) Her face looked enough like Quinn’s, though not exactly, and her eyes looked a different shade of blue. Finally, her hair was the length of Dick’s, but was now mainly black, with blonde hair at the roots. She didn’t look like Harley Quinn, but she definitely didn’t look like Dick Grayson anymore.

“Dick? Talk to me! Dick!” Batman exclaimed, hoping to get an answer out of his son.

“D...ick? Who’s... Diiiiiicc...” Dick mumbled, before fainting. Batman checked her breathing to make sure she was still alive. When he knew, Batman looked to the Joker, who was now coming to.

“What did you do to him?!?” Batman angrily exclaimed, lifting up the Joker by his collar, “what did you do to Nightwing!”

Joker started to look furious, and tears started to come from his dark green eyes. “Curse you Batman! My one chance to get Harley back, and it’s ruined! Kill me! Go ahead and kill me! If you don’t I’ll kill myself anyways!”

“Not before you fix what you’ve done!”

“Fix!?! Unlikely! This was supposed to be a permanent process, but you had to go an mess it up! Now even I don’t know what will happen to her! Who knows, she could be like this forever! It’d make me laugh, but I don’t think I could laugh again!”

Batman knocked Joker out cold, furious. Batman looked around the lab, seeing if there were any notes on the process of all this, hoping to cure what Joker had done. However, there was nothing, except the mind-altering gas, the syringe half-full of shapeshifting formula, and The Boob-Tube. “Oracle, I’m going to take both of them to the Batcave, with this equipment. Head there as soon as you can. What I’m going to do is risky, but there’s no going back after this. It has to be done.”