I think we might be some years away before we get a new Navara. New Hilux late 2014, and Triton mid 2014.
http://www.autoblog.com/2014/02/06/nissan-frontier-diesel-runner-cummins-concept-chicago-2014/
http://www.autoblog.com/2014/02/06/nissan-frontier-diesel-runner-cummins-concept-chicago-2014/