I think it would be a nice addition to have the characters of the top players and mvp displayed in the post-game scoreboard. Players could set the emotion to be played by character during these. It would add more value to the emotion/costumes.

Maybe with a random line of game records like 'most kill streak' or 'highest damage/heal streak' of the players included for more stardom effect , and some post-game scoreboard exclusive decorations probably..