It's been speculated for a long time and now it's official. 

The NHL will announce on Tuesday that Seattle will become the NHL's 32nd franchise. 

The team is expected to join the league for the 2021-22 season and will likely join the Pacific Division with the Arizona Coyotes moving to the Central Division. 

Seattle's new arena won't be ready until the fall of 2020.

It's an interesting decision by the NHL with both the future of the Ottawa Senators and Arizona Coyotes still a concern. 

More to come after the official announcement.