Mercedes will unveil the 2013 edition of the Gelandewagen at the New York Auto Show. For 2013, both the G550 and G55 AMG versions of the SUV will be available.
Mercedes accidentally released a photo of the 2013 G-Wagen in publicity photos of the 2013 GLK series, which is also being revealed at the show. No diesel for the G-Wagen in USA, but the GLK will have the 2.1L four cylinder diesel available, starting in early 2013.
Here's the photo: