Witcher 3 - Not the last Witcher Game

Farflame spotted on Gamepressure that The Witcher 3 is not the last game in the Witcher universe:

[...]

CD Prpject RED President Adam Kicinski:

The Witcher has been designed as a trilogy. A trilogy cannot have a fourth part. Nonetheless, we like this universe very much, we’ve invested 15 years of our lives and a lot of money in it… we’ll think about it some day. (…) We think rationally. We happen to have weird ideas occassionally, but generally we think rationally. We have full rights to these games, they are ours. We’ve pomped huge money into their marketing, the brand is strong… I think you can answer that question to yourself.

[...]