Simpsorama

"Simpsorama" is an upcoming episode of Season 25, that will be a crossover with Futurama.

Plot
The Simpsons meet the Planet Express crew when Bender travels through time to stop Bart in order to prevent the future from looking bad.

Comic-Con Announcement
The episode was officially announced at the 2013 San Diego Comic-Con. Executive producer Al Jean stated that the cast of Futurama would guest star and it would either air as the season 25 finale or the season 26 premiere.