The current men's Boston is here. It is still the Boston 6.
http://www.runningwarehouse.com/descpage-ADB6M1.html
The Boston 7 comes out in Fall 2018 (really June) in 2 colors.
There is an early release of the Boston 7 in the Boston special makeup. This shoe goes up for sale today with adidas and a couple select retailers. RW will have it up for sale on the 1st (maybe the 2nd since the 1st is a Sunday). Very limited numbers.