What c-list or lower characters would you like to see given more attention and how would you do it?
My choices are Ryuku Orsono (Bushido of the Teen Titans), Xiang Po (Gloss of New Guardians) and the Golden Age Wonder Woman villains Osira and Zara.
Ryuku - Inspired by Archer Emiya from Fate/Stay Night, I'd make Ryuku a sorceror who learned the ability to duplicate any object he sees including powerful magical items which puts him on the radar of some very powerful and dangerous entities leading to him turning to the Titans for help.
Xiang Po - I'd connect Xiang's abilities to the Chinese goddess Nüwa and explore her control over the five Chinese elements (fire, water, earth, metal, wood). Basically she'd be DC's Crystal. Alternatively, I'd make her powers similar to the Old Power from Marvel.
Also, I'd have her join one of DC's international teams like JLI or Checkmate.
Osira and Zara - I'd make the Amazon sorceresses teaching at an Amazon academy for young girls.