I just can't see them doing it as a mere variant, to sell a bust from that movie, I don't think just the really charred head would be enough, so then you have to make the mask different and that's a lot of work, especially because collectors wouldn't accept not having the interior of the face plate look ROTS style which is much more detail than they've done for this bust.
I'd love to see a 1:1 version of that charred portrait, but not sure it'll happen. They could just do a burnt Anakin bust I might be tempted by that, burnt shoulders and everything, Sith eyes. It's inhuman enough to work.
