im thinking the story is going to based around the first family you see and youw ill play the dad/mum of that child, reason for this is he looks identical to the guy at the end, and how this works is if you know well enough every vault was used as a experiment, vault 111 may be a cryo thingy migid to test how people survive after being frozen for long periods of time, this said the story will follow the character you create, if you are a guy you will be the dad and if you are the girl you will be the mother, so who knows they may plan co op play in this one.... and if im right the story will follow somethign to do with that family.
other ways to back this up, we all know bethesda as being secretive and a bit sneaky, why would they have the dog (most likely a family dog) go to that house in particular and check where the baby would normally be, so with this said maybe the dog is the first companion and the first thing he does is checks for the baby that it had an emotional bond to, and you would think now, well what happened to the baby shouldnt he/she be in the vault? well no cause at the end the lone wanderer/the player says "lets go pal" in a sad tone so he is searching for his family cause they may still be alive, maybe he is the only one who made it in cause you know the vault had a register if you weren't on that list you didnt get in maybe he/she was a important character to the government and taken from his family into the vault with the thought his family would come. now this dog would also of been frozen, hence why the dog knows the home and checks the baby as that is the last place he saw him.
So just a quick thing and judging by the trailer i may be onto something what do you guys think?
Edit: remember the bombs dropped in 1950's, the game is set is the 2170's so he could have been frozen for a long enough time for radiation to die. it makes sense and due to him/her being alive it may be a reason why he thinks the rest of the family may be alive
