Detroit's odds of landing a Major League Soccer team remain unknown, but the process and time-frame got more clarity Thursday afternoon when the expansion process was unveiled.

The 20-team league, which already has plans for expansion clubs in Atlanta, Los Angeles, Minneapolis-St. Paul, and Miami, will announce its 25th and 26th teams in the third quarter of 2017 as part of a plan to grow to 28 teams. The league hasn't disclosed when it will announce the 27th and 28th teams.

The 25th and 26th teams teams will begin play in 2020, and their expansion fee will each be $150 million. MLS didn't say when the final two expansion teams would begin play, nor how much those ownership groups will pay to join the league.

Two of the region's billionaires — Detroit Pistons owner Tom Gores and Quicken Loans Inc. and Cleveland Cavaliers owner Dan Gilbert — in April announced their intention to seek a team for downtown and $1 billion stadium plan for the unfinished Wayne County jail site. MLS Commissioner Don Garber was on hand for Gores-Gilbert announcement, and was supportive of the idea of a team in Detroit.