Its a new generation.
We have no idea what kinda affect it will have on the PS4.
It also launched 5 months before the new consoles were out, it, it was never going to have any sort of massive effect that late in a generation, where the die has already been cast.
But from out of my ass observations it will have played a part in some peoples choice to have switched to Sony, they saw sony weren't just phoning it in the lass couple of years and knocking out another sequeled franchise but, a new IP 5 months before their next console hit. And not just a new IP a game of the year IP.
Its a game with genuine hype about it, not just before the game, but after its release, through to its DLC. Its not going to sell consoles alone, but the PS4 doesnt need console sellers, TLOU iust gives another string to the bow of the console.
I'm also interested in seeing how people who have swapped from the 360 to the PS4 think of the game,