Its too late, Titans is as mainstram as it gets and she going just as Donna Troy, I dont Mind Troia if she needs a code name, but not much point in pushing it
She's actually "Wonder Girl" in Titans, at least for the foreseeable future, other than her civilian identity.
"We come into this world alone and we leave the same way. The time we spent in between - time spent alive, sharing, learning together... is all that makes life worth living." - Jean Grey