Catan: Traveler is a new stand-alone edition of Catan. Official announced on March 11th 2015, with a "spring" release date before being delayed until "summer". Pre-release versions were at GenCon 2015 and it appears as of August 14, 2015 to be available online from Mayfair, Amazon, ect. However, no official release was announced.
From the images and information on Catan.com, here and here, it appears to be another iteration of Catan: Portable Edition.