Greg Weisman used Young Justice to play in the toy box. He was given access to pretty much every DC character and he tried to use as many as he could.
He doesn't want to stop. He didn't want to make an ending to the Young Justice universe because he wanted it do go on forever. He wasn't looking at it as one narrative but a world with countless narratives.
"Intelligence has no place in Politics" Londo, (Babylon Five)
Best new show of 2023, One Piece live action.