Hmm. Someone oughtta let Kurt Busiek know there's a story here waiting for him.
On the other hand, do we really need another blond, brilliant, imperious manipulator when we've already got Veronica Cale? (We do still have her, right? She didn't die during Four Horsemen?) Indeed, the similarities between the two make me wonder if it wasn't deliberate on the part of the creator.
On the other other hand, there's an opportunity here for a reversal of the gender-swap cliche that's so popular these days; who wouldn't want to see Baron Paul von Gunter running around in some skimpy outfit?
He could be the long-lost son (grandson, whatever) of the von Gunter dynasty, furious at the Amazons because their no-men policy keeps him from seeing his relative, and he decides to take it out on Wonder Woman, the Amazons' most visible symbol. Or something like that.
Busiek would do it better than I, no doubt. But in this era where everything old is new again, it seems a shame to keep a character this historied under wraps.