A trademark registration with the German Patent and Trademark Office reveals that something called Fallout: Shadow of Boston is in the works. The trademark was registered by Fallout developer Bethesda. The listing is for “game discs” “downloadable computer game programs” and “auditioning for tv shows”. This is very much in line with the leaks from back in February. Those leaks suggested that a game called Fallout: Shadow Shadow(s) of Boston was in the works for a 2017 release and that Ron Perlman was involved. There were also mumblings of casting calls for a Fallout game set in Boston by the same name around that time. VGX reveal incoming?
Seems is was a Fake Source: http://www.gamespot.com/articles/fallout-shadow-of-boston-trademark-is-fake-update/1100-6423376/