Sorry but I think at some point I will be rebooting this with a different cast but still the tone of the cartoon. I think that even writing this story I was struggling with trying to balance the tone of the show with similar tone from My Adventures with Superman but I think I can try again with doing a more light hearted tone that does get more serious. First here is what I had planned for this story:
Kyle becoming Control Freak which was obvious.
Lincoln helping take down the Nazi government of Earth-X and gets help from the Earth-X Kara who was forcibly betrothed to Earth-X Lincoln and was heartbroken to see her baby cousin become a proud enforcer of the regime. She ends up impaling Kal with a Kryptonite spear and kisses our Lincoln and goes to normal Earth to atone. She may end up becoming Power Girl.
Plus Earth-X was not only going to be a villain but the White Dragon.
Zala is revealed to be Zee's mother who wants her daughter to rule by her side and sees her son as a pawn. She also saw Lincoln as a consort for her daughter and had plans of the girls becoming their harem to Kara's anger. Zee then dons the Helmet of Fate to stop her mother but Fate doesn't want to let go and inspired by Young Justice; Zatara gets Fate to let her go in return for him becoming the host of Fate to Zee's horror.
The General is Sam Lane as you can expect and John Corben genuinely likes superheroes but recognises that in real life; you can't count on them staying heroes forever and just wants to help make sure that counter measures should the worse happens is there. He does genuinely like Lincoln and his Super Friends team.
Joker comes to Metropolis in a Hawaiian shirt and squares off against Peacemaker and Batgirl when he kidnaps Commisssioner Gordon and takes him to a theme park. He makes the 'I go looney' song and rescuing Barbara's dad and defusing the bombs; there's an explosion and Barbara falls and is crushed by debris. Lincoln gets it off and has his friend in his arms and she is in tears and is like:
"I... I... Can't feel my legs..."
Yeah... I was going for the Killing Joke there.
What do you think of the plot ideas I had there individually?
Plus here are my plans for a new version of this story and I am welcome to hearing your ideas please on who could be in it and part of the pairing. DCSHG Zee will still be in this new cast as she was before and best friend/one of the love interests for Lincoln/Peacemaker. Lincoln would be the student and successor of Peacemaker as before but new ideas:
Barbara as Batgirl could return.
Plus Kara as I do like the different tough girl Kara.
Courtney Whitmore as Stargirl as a fan of the character.
Billy Batson as Captain Marvel as the little brother figure of the group. Plus maybe instead of her it's Darla as I really like her and she was one of the few things I liked about the New 52 SHAZAM comic.
Starfire filling the role of Diana as the outsider whose adorkable when interacting with earth life.
I am open to ideas that you have please on who could be in the group here and feedback on my ideas please. Plus I want the Justice League to be established for this verse with them fully adults when Lincoln gets to Metropolis as a kid.