Fool's Theory explains where The Witcher 3's expansion region Letten actually is, and it's close to the setting of The Witcher 4

CD Projekt Red recently announced the new Witcher 3 expansion, Songs of the Past, revealing that it is set in Letten, the birthplace of Geralt's friend Dandelion. However, pinpointing Letten's exact location on the map has proven challenging. In a recent CDPR Gamescom stream, Peter Gelencser, the world director for Songs of the Past, provided some guidance.

He stated that Letten is located in the north, halfway between Kovir and Kaedwen. To find it, one would need to take the Buina river east from the Gulf of Praxeda and then turn right on the Nimnar river on the southern shore. Gelencser estimated that it might be near Gelibol, in northern Redania, and relatively close to Blaviken, the location where Geralt earned his nickname "Butcher of Blaviken."

This places the expansion relatively close to the setting of the upcoming The Witcher 4, which is set in Kovir, but significantly distant from the southern Redania-Temenia region and Cidaris, another rumored location for Songs of the Past. The expansion is described as a calm and idyllic Polish countryside, with spring and the end-of-winter festival Belleteyn taking place.