Uncharted 4: A Thief's End will not include split-screen multiplayer at launch, though this feature could come sometime after launch, Naughty Dog said today during a livestream event today.
Lead designer Robert Cogburn said split-screen is a "technically challenging" feature; there are many "hurdles and obstacles" that would need to be overcome if the feature is ever delivered.
While Naughty Dog is interested in adding this feature to the game after launch, it was scrapped so that the team could meet the May 10 release date.
Cogburn went on to say that, as a result of the issues mentioned above, Naughty Dog is not 100 percent confident that it will ever be able to release a split-screen mode for Uncharted 4 multiplayer. That's in part why it was not mentioned in Naughty Dog's recently published DLC roadmap.
Still, Cogburn said developers at Naughty Dog are big fans of couch co-op and would like to add the feature someday, even if it takes a long time.
Full article: http://www.gamespot.com/articles/no-split-screen-for-uncharted-4-multiplayer-at-lau/1100-6439494/