They're also hiring a ton of Director/Lead/Senior staff for the game, so I believe them that it probably hasn't entered full production.
Lead Writer: http://en.cdprojektred.com/jobs/lead-writer/
Senior Game Designer: http://en.cdprojektred.com/jobs/senior-game-designer/
Lead Level Designer: http://en.cdprojektred.com/jobs/lead-level-designer/
Lead Quest Designer: http://en.cdprojektred.com/jobs/lead-quest-designer/
Senior Multiplayer Designer: http://en.cdprojektred.com/jobs/senior-multiplayer-designer/
Well, only one of those jobs mentions Cyberpunk, the rest is probably for their other games. Especially that last position.