During CD Projekt RED's Siggraph 2013 talk a slideshow snap revealed a little more about the "futuristic story driven RPG" Cyberpunk 2077, which the studio is creating in parallel with The Witcher 3: Wild Hunt.
It's an open world with a dense city and "surrounding wastelands" but interestingly CD Projekt won't keep the experience exclusive to a third-person perspective like RPG The Witcher.
Arguably this is down to the fact that in Cyberpunk 2077 you can utilise firearms, as opposed to the melee focused Geralt. We'll also enjoy "tons of customisation" according to the slide.
Cyberpunk 2077 releases on PC, Xbox One and PS4 in 2015.