My problem is that all the series staples hinge on the protagonist being a witcher. Potions, decoctions, mutagens, seeing in the dark, enhanced physical abilities, etc.
Ciri has her own powers, but they aren’t those of a Witcher, so this still wouldn’t make sense. I still wonder what potion she drank in the trailer because witcher potions are highly toxic in no small part due to their base almost always being a strong alcohol that is so concentrated that it’s dangerous to humans. How Ciri can drink those without the biological mutations to neutralize the toxins is a mystery.