You know what's even better imo? Open world games are significantly freed by the new generation and their SSDs. We know from Guerrilla Games that due to IO speed, Killzone Shadow fall loaded in 30 seconds of predicted gameplay into RAM. At current SSD speed, you need to load in only a few seconds. Now compare that to open world games: their 30 seconds of gameplay is in basically any direction, as opposed to a linear game like Killzone. Therefore, they should disproportionately benefit from the ability to refresh the entire RAM in a 3-4 seconds.
As incredible as this linear demo was, the real stunners compared to this gen are probably going to be the open world games.