Curate, connect, and discover
Imagine if they were so excited because, they were sent back in time by clockwork, and allowed to change one thing to make the world better. He told them they would know what they were supposed to change when the time came (he already knew what would do and saw how much better the timeline would be) so as soon as they discovered what time period they had been sent back to, they immediately set to work on getting rid of the Jocker. So many people’s lives would be better without him they knew this for a fact. They only had one change they could make, and getting rid of the Joker was the best way to make it count.
After making sure the other important things still fall into place afterward (like Tim joining the team. They may or may not have helped Jason spot him), Clockwork took them back to the present. From Harly, Ivy (they def interacted with her if Jaz was interning with Harly), Bruce, Dick, Jason, and Tim’s POV, these sibling just appeared in Gotham one day, suspiciously around the time Joker “got sick” and then promptly disappeared out of existence once the batfam took in Tim.
Now, years later, (it’s only been like, a day for Jazz and Danny) they reappear, looking exactly the same as they did the last time they saw them. Chaos ensues as the batparanoia goes through the roof with Batman trying to figure this out. Harley and Ivy are confused, but are also quite happy to see their friend again, and Jazz is equally as excited to see them, talking about the old days as if they were yesterday.
I agree with some of the other reblogs that Harley still becomes a rouge, but I think she’s not nearly as violent, because she doesn’t have the tacked on trauma the Joker caused her. She fits into the anti-hero role a little better than just straight up villain.
Danny: Jazz! I just scored you a personal internship with Harleen Frances Quinzel! The same woman you write your college entrance essay on!
Jazz: *Squeal* How did you manage that?!
Danny: I pulled some strings on the other side. Pays to be Ghost King. Now pack your bags, we're going to Gotham for two years!
Jazz: We?
Danny: Of course. Like I would leave you alone for months on end. I got myself a paid internship in Wayne Tech.
Jazz: *Louder Squeal* This is going to be so much fun! Did you know Miss Quinzel just accepted a job as Arkham Asylum? She's going to personally work on Joker!
Danny: You have the perfect window to posion him!
Jazz: Dreams do come true!