Joe Roth, owner of the Seattle Sounders, is bullish on the prospects of the MLS.

Roth believes the MLS will be the No. 2 sports league in the United States 20 years from now behind only the NFL.

Orlando City owner Phil Rawlins believes the MLS will be one of the world's top-five soccer leagues in 20 years.

Jon Kraft, however, believes the MLS will still be single-entity.

Roth believes promotion and relegation is not good for the MLS.

"I hope not. If the Premier League started today, I don't think they'd have relegation."