I’ve been hearing a lot of people praising Harley Quinn for it’s quick turn around today so I want to be clear about something. Harley Quinn Season 2 was not created super fast.
The initial order for Harley Quinn: The Animated Series Season 1 was 26 episodes. Harley Quinn The Animated series was originally going to go on for another 13 weeks after today. Instead maybe because they needed a hiatus, split the show into two 13 episode seasons.
Basically Harley Quinn Season 2 is like Young Justice Season 3 Part 2 only they are calling it Season 2 instead of part 2.
Edit from Admins: This statement is speculative and does not reflect official information from DC Universe.