An official website has opened at www.db-tour.com for the upcoming “Dragon Ball North America Tour 2018”:

A Dragon Ball event, the greatest of all time, is coming to the United States and Canada.
Consisting of 7 stops, starting from San Diego!!
Expect exclusive items and a one-of-a-kind experience!

The website and its brief teaser video reveal a July 2018 kick-off in San Diego, with further locations promised:

Shueisha and Toei’s traditional copyright notes are included on the page, while Bandai’s official YouTube channel hosts the teaser video. FUNimation is also credited as the coordinator for the North American license, while Tamashii Nations is listed as one of the first “Brands” alongside the tour.