https://www.pcgamer.com/blizzard-wants-to-add-six-more-overwatch-league-teams/

Blizzard said in February that the Overwatch League would likely expand for its second season, although details beyond that basic intent to grow weren't available at the time. In a recent interview with German site Handelsblatt, Activision Blizzard Esports Leagues CEO Pete Vlastelica elaborated on the plan, saying that Blizzard wants to add six more teams to the league: Two from the Americas, two from Asia-Pacific, and two from Europe and the Middle East. 

Although teams adopt the names of their host cities around the world, all Overwatch League play happens in Burbank, California at the Blizzard Arena. All Overwatch League teams reside in the area.