Since Bethesda added voiced dialogue in their games, they have all had a shouty man who stands in the street yelling at us. Oblivion had the Prophet in Anvil, Fallout 3 had Confessor Cromwell at the nuke in Megaton, New Vegas had the Mick and Ralph's Crier, and Skyrim had Heimskr preaching for Talos.
So, do we have any predictions on who will stand about shouting at us in Fallout 4? Personally I'm hoping for a Protectron who is an enthusiastic Baptist preacher.