This is about as close as you are going to get to a confirmation that Nissan is introducing a small, lightweight sportscar in 2013 in part as a celebration of the 80th anniversary of Nissan. Nissan's lead designer Shiro Nakamura (who I have had the pleasure of meeting) states as much in this edition of Jay Leno's Garage where he spends some time in Japan driving the original 240Z and touring the Nissan design facility.
It sounds almost like the new 240Z may well be a replacement for the 370Z though that is kinda hard to believe given it was just introduced in the last year or so. Regardless, the introduction of this new version of the 240Z should be introduced sometime in '13 to go on sale in '14 by the sounds of it. Can't wait to see Nissan's competitor to Subaru's BRZ and the Toyota FT-86.