Worlds Collide 2015

Originally, it was thought that Worlds Collide was solely going to take place in April, 2014, but once the month passed, and the board remained up, fans begged for a second event. Scholastic agreed, although it's still not positive that WC is now an annual event.

Also originally, the 39 Clues, Infinity Ring, and Spirit Animals were the only three involved, but as of this month, multiple other series have been added, including Goosebumps, The Iron Trial, and Mindcraft.

On the official WC board, the mods have announced a live WC event on March 21st, 2015 at their HQ (presumably in New York). Also, the official month has been moved to March, though the original WC took place in April.

News
March 1st - Start of Worlds Collide Mashup Month

March 21st - Live Worlds Collide at Scholastic HQ (including live author chats!)