User blog comment:AlthaBlade/Bloons Wiki News - December 2, 2012/@comment-5199397-20121202144316/@comment-5199397-20121202220256

Well, SW talked about the new multiplayer option, and it is coming to be BTD5's 1 year aniversary... I'm not sure...... I predict there will be a 50% off premiums bonus on December 15th.