At WonderCon's Gotham panel this past weekend, many teases for season 2 - and the end of season 1 - were afoot. Most notably, Fox teased a number of villains according to Variety's Laura Prudom that would appear in the second season, including Mr. Freeze, who has been teased on the show as well, Clayface, Hugo Strange, Tommy Elliott, and the Mad Hatter.
They also promised a return to the story of "Jerome," one of the many possible candidates to become the Joker, as well as the inevitable turn of Edward Nygma to becoming the Riddler, in the midst of a personal crisis.
Seven minutes of previously unreleased footage showed Fish Mooney attempting a prison break, thwarted by the Catcher. The footage also set up the case of a serial killer dubbed "the Ogre," who Gordon will be tracking through the first season's final arc. The promo footage for the upcoming episode "Beasts of Prey" shows Milo Ventimiglia as Jason Lennon, A.K.A. the Ogre getting close to Gordon's ex-wife, Barbara Kean.
Finally, Fox also announced that they had come close to adding the Court of Owls to the second season according to Prudom at Variety, but "haven't yet committed" to bringing the fan-favorite villains into the second season.
Gotham returns to air Monday April 13th.