This document (Adobe Acrobat format) offers a roadmap of the next couple of years for CD Projekt RED, explaining (in Polish) the Polish developer's plans. A post on The Witcher forums translates some key points from this, which includes word on a couple of unannounced smaller (20 hour) games based on one of their properties (thanks Zak). Here's word:

2013

• open REDkit beta and further support of the modding community
• premiere of the first non-computer game set in the Witcher world
• launch of a local branch of CD Projekt RED in the United States, focused on marketing and PR for both Americas, especially the US.

2014-2016

• launch of The Witcher 3 for at least three strong platforms including PC and PS4
• launch of Cyberpunk 2077
• two smaller (about 20 hours of gameplay) but top-quality games supporting one of the product lines
• a cross-platform mobile game based on one of CDPR's brands
• start of license sales for REDengine
• long-term Witcher 3 support involving completely new mechanisms
• launch of the full version of the REDkit and further modding community support
• launch of further local CDPR branches in key territories