Am I the only one who thinks they need to just do a nationwide search for the next Harley Quinn or something? Get a soundalike, like Telltale did for Michael J. Fox with the Back to the Future game? Because, I'll be honest, I don't think Harley, as a character, will ever escape Arleen Sorkin's shadow, and I think it boils down to the fact that she was created for TV, and that was our first exposure to her.
There's versatility in adapting characters from comics, but DC seems to think that the fact that she "broke out" from under TAS and became an extremely successful crossover character means she has somehow transcended Arleen Sorkin, as well, when, in fact, all 20+ years of comics and other media have just reinforced that idea of Sorkin as Quinn. There's ambiguity in how I "hear" most comic book characters, but I've never opened a Harley Quinn comic and heard any voice other than Sorkin's.