With the addition of Orlando City SC and New York City FC, Major League Soccer saw a significant increase in its attendance during the 2015 regular season. (Orlando City SC and New York City FC had the 2nd and 3rd highest average attendance, respectively.)
Also, isn't nice to not have Chivas USA dragging down the league. Don't miss you at all, Chivas.
So how does MLS attendance stack up against other leagues? Pretty good, actually. MLS ranks 7th among the world's soccer/football leagues in average attendance per match.