inFamous: Second Son on the PS4 will not have any multiplayer mode attached to it.
Brand Development Director Ken Schramm confirmed this to Taiwanese media during the Taipei Game Show reports DualShockers. inFamous: Second Son will solely be a single player game with no online multiplayer added on to it.
Personally, I think this is a great idea since multiplayer modes were not featured in the previous games. Multiplayer modes were added unnecessarily to games like Batman: Arkham Origins and Tomb Raider last year.
inFamous: Second Son will be out in March exclusively on the PS4.