According 343's Franchise Development Director Frank O'Connor, those who want the much debated split-screen mode back in Halo, should better start a petition for the next Halo game. Inclusion of the mode just isn't possible in Halo 5, and 343 would have included it, if it was possible.

　　The removal of the splitscreen mode from the upcoming Halo 5, caused quite an uproar in the Halo community. Back in January of this year, 343's Josh Holmes tweeted that the team was planning to implement the splitscreen mode for both MP and Campaign Co-op. In June, Holmes indirectly confirmed the removal of the mode from the entire game.

　　Following the announcement, a petition was started to bring back the mode to the upcoming Halo 5. The petition has gathered over 7000 supporters since June of this year. On Twitter 343's Frank O'Connor again commented on the issue, and replied that it's simply not possible to include the mode in Halo 5. O'Connor adds that the team would have included it, if it was possible.

　　@jacob_stamm @BubbaDJ000 @Greenskull because he's fully aware we'd have included it if we could have.

　　— Frank O'Connor (@franklez) October 16, 2015

Aiming for 60FPS

　　To be done with it, O'Connor comments that fans should rather start a petition to bring back splitscreen to the next Halo.

　　@Narmi234 As we've explained, it's not technically feasible to add or we would. You'd actually be better off petitioning for the next game.

　　— Frank O'Connor (@franklez) October 16, 2015

　　Although limited, O'Connor's response does leave hope for a 'new' Halo with perhaps a splitscreen mode.