Q: What has survived from the "old" TimeShift to the "new" TimeShift? any important design elements? What new design elements have been introduced?

BS: The element of time control remained, of course, as did the Time Grenade mechanic for multiplayer. Besides that, virtually everything was changed! The story, the weapons, the characters (including the main character), the environments, the graphics, the music – all of it was tossed out and reworked from the ground-up. If you didn’t know the backstory behind the development, there’s no way you would confuse 2006’s version of the game from the final gold master you’ll be playing.