Most likely outcomes:
Conversions to emo
Slit wrists
Boredom
User-Database shrinks profusely
Extreme ammount of servers die out
Noone plays
Boredom
People need to find a new game
Forums left desolate
Boredom
Less money for Badspot
Boredom
Useless add-ons and bad maps
Boredom
Boredom
N00b populous grows
Boredom
Boredom
Boredom
...
Yeah, exactly.