Everybody looks closer to their S1 selves.
A lot of seeds were planted in S3, so maybe we will see them bloom in S4. The plot line with Zatara as Dr Fate and Zee mentoring Traci 13. She probably has some kind of plan to free her father.
I have no issues with the costume but I think something like this:
Or a slightly updated version of this (minus the pixie boots):
Would have fit a teen version of the character more.
The stage outfit costume looks weird in group shots.