Board Thread:Show-Related Questions and Answers/@comment-24867198-20160114043414/@comment-4453062-20160114051346

NickyHelp wrote: Adam said 23 episodes is on their minds right now. He said so on Twitter.

https://twitter.com/AdamHorowitzLA/status/659260312244215808 These tweets clarify, too:

https://twitter.com/AdamHorowitzLA/status/674841621444165632

https://twitter.com/AdamHorowitzLA/status/674864535639973888

To make the most sense out of it, the split was originally going to be 10 episodes for 5A, and 12 episodes for 5B. That was what Adam and Eddy said back during SDCC. However, according to Adam and Eddy, "The Bear King" got added as an extra episode in 5A, boosting 5A to 11 episodes. 5B's count remained 12 episodes.