On December 7, 2012, the dates and location of the convention were revealed on the official site.
On January 31, 2013, the first toy's robot mode was revealed via the official Transformers Facebook page: Machine WarsHoist. His alt mode followed on February 6.
On February 8, 2013, the second toy's robot mode was revealed via BotCon's website: Machine WarsSkywarp. His alt mode followed on February 12.
On February 14, 2013, the third toy's robot mode was revealed via BotCon's website: Machine WarsStrika. Her alt mode followed on February 19.
On February 21, 2013, the fourth toy's robot mode was revealed via BotCon's website: Machine WarsObsidian.
On February 26, 2013, Obsidian's alternate mode was revealed, guests James Horan and David Sobolov were announced, and the convention brochure went up, revealing amongst other things the identity of the fifth toy: Megaplex.
On February 28, 2013, Megaplex's robot mode was revealed on BotCon's website.
On March 14, 2013, registration went live, after a short delay.
Come to San Diego, there's so much to see! From the sparkling waters of Mission Bay, to the warm tortillas of Old Town. And after a day of sightseeing, why not try spankin' it on one of our city streets? San Diego: come take a load off!
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—South Park
BotCon 2013 will take place at the Town and Country Hotel and Convention Center. It boasts a spa, three outdoor pools and five on-site restaurants! Oh, and cable TV, because we're not barbarians here.
