The Witcher 3: Wild Hunt Will be Last Game in the Trilogy, Franchise Will Go On

Eurogamer Poland is apparently reporting, according to a PC Gamer translation, that The Witcher 3: Wild Hunt actually won't be the final Witcher game, although it will indeed conclude Geralt of Rivia's trilogy. Here's the quote:
(This is the last part of the trilogy, in which there will be a great finale of the story,) Kicinski says. (However, this doesn't mean the end of franchise. The franchise will continue.)

Considering that the original Witcher was originally meant to star a customizable Witcher character rather than Geralt, continuing without him doesn't sound particularly far-fetched.