Fallout 4's reveal trailer is clearly set around the idea of 'then and now'. That's nothing too out of the ordinary for Fallout - in fact, quite a lot of the prevalent themes of the series deal with the 'then and now' of the alternate universe. One thing that does seem out of the ordinary and abnormal for the franchise is that this trailer clearly depicts The Great War. (For those who don't know too much about Fallout - The Great War occurred on October 23rd 2077. After a long and drawn out war between the US, Russia and China, tensions finally boiled over. No-one knows who fired first, but it lasted two hours. The world was plunged into darkness and a small chunk of the American populace made it into Vault-Tec Vaults, to ride out the apocalypse.) Up until now we'd only had the war described to us, so it's an amazing thing to see possible backstory unraveling before / as the bombs fell, but who's to say that there won't be more gameplay of the pre-war world waiting for us? There are what appear to be possible gameplay sections in which the player will be in control of a child in the pre-war timeline, so could this be the first Fallout game to traverse the universe's history? Will events in the future be triggered by playable memories of the past? Or will this all just boil down to another (albeit more engaging) tutorial section in the spirit of running about Vault 101 in the opening minutes of Fallout 3?