As suggested on the forum, there should be an event that reveals Ciri's dynasty and real father (Emhyr) under certain conditions:
- if Ciri becomes Queen of Cintra and dethrones false Ciri.
- if Emhyr wins the 3rd Northern war and conquers the North (cf one of TW3 possible endings: "Geralt and Ciri are in White Orchard hunting when a Nilfgaardian party comes to collect her, as she has chosen to become the new Empress of Nilfgaard".
As suggested on the forum, there should be an event that reveals Ciri's dynasty and real father (Emhyr) under certain conditions: