Here’s my take on this: it aint gonna be someone famous. Certainly not Hayley Williams, Amy Lee or Courtney LaPlante. These are the most exposed names in rock/metal music, so majority will just spam those names, or even just random LP associated females. Only Alainis Morrisette is missing so far…
I believe they’ll go for someone less known, might be someone totally random. They might avoid major comparisons, references etc.