Tomek Gop's LinkedIn Profile has word that the senior producer on The Witcher 2 has departed CD Project RED, which Polish website Gamezilla.pl says was due to feeling a little tired and burnt, attributing this insight to a source, so this is not firsthand information. There's an interview on GameBanshee with Gop (whose first name is also written as Tomasz in English), where they spoke with him about The Witcher 2 before his departure from the company.