http://www.techradar.com/news/googles-pixel-2-will-finally-be-revealed-on-october-4

Last year, Google made a big splash with its first Pixel smartphone (well, as much of a splash as a non-water resistant handset can make), and now it appears that we're only a few weeks away from seeing its much-anticipated follow up, expected to be dubbed the Google Pixel 2. 

Spotted by a Droid Life reader, a new billboard has appeared in Boston with the words "Ask more of your phone" in large lettering, followed by the Google logo and a date of "Oct. 4" at the bottom.