It seems the 5 cylinder 2.5 motor is being replaced with a the 1.8TSI motor used in the European Passat and CC. This is not the same 1.8T motor that is found in MkIV models. The change will be made to the 2014 Jetta. Also some other interesting news for you guys to read.
http://www.autoblog.com/2012/07/17/2014-vw-jetta-to-drop-five-cylinder-in-favor-of-turbo-four/
http://www.autoblog.com/2012/07/17/2014-vw-jetta-to-drop-five-cylinder-in-favor-of-turbo-four/