@Meddler: As long as we're talking about "clear identities", what about Irelia?
Seems like she has NO clear identity. She's just a mashup of various fighter capabilities, and does nothing that someone else can't beat her at in at least one way. Sustain? Aatrox and Tryndamere beat her. True damage? Darius. Mobility? Lee Sin. Waveclear/pushing? GP. You get the idea.
Irelia's identity as the "psychic blade manipulator" is simply not utilized in her kit. Any plans to address that? I'd certainly love to see something along the lines of the Blazblue Murakumo Units.