I remember IGA saying something about a female warrior not being historically accurate for the time. Neither were clock towers, Frankenstein monsters, electricity, or men fighting Satanist factions with a transforming whip, or Dracula being an evil sorcerer, but Konami works in mysterious ways.
Shame, cuz Sonia was pretty hot. The story for Resurrection (Dreamcast one) was god awful, but dammit, I wish that game had come out anyway.
I wouldn't mind something like a Legends Rebirth, but the chances of that happening are lower than nonexistent. Legends wasn't really the best game, and the relationship with Alucard was pretty hokey, not to mention it wasn't much of an origin story at all outside of "Dracula was a pretty bad dude who used lots of magic and stuff". Even so, it had some amazingly complex music that I wish newer games would pay tribute to, and a female Belmont was a cool idea that should be revisited. But NOOOO, women are always spellcasters with lighting-fire-ice shit, or merely killed by something to make a dramatic revenge plot occur.