Will there be an episode 2 of fionna and cake?

As of my knowledge cut-off in September 2021, there is no official confirmation about a second episode of "Fionna and Cake," the spin-off series featuring gender-swapped versions of the main characters from "Adventure Time."

The "Fionna and Cake" episode aired as a special within the original series, but there has not been any official announcement regarding a separate show or additional episodes.

It is always possible that the creators or network could decide to produce more episodes in the future, but without official confirmation, I cannot provide a definite answer.

To stay updated on any developments or announcements about "Fionna and Cake," you can follow the official social media accounts or websites of Cartoon Network or the show's creators.