I don't think we're gonna see TLOU on the ps4 for awhile
It's already confirmed working fine from beggining to End through Gaikai services.
Of course, Gaikia BC isn't coming out until 2014, so we got a while...
Please read the Gaikai section for more info in the main PS4 thread here -
Oh, I didn't realize that it wasn't out till 2014. But this thread isn't really about gaikai itself, its more about how backwards compatibility isn't really an obligation with gaikai around now, and its not as big as a deal as people make it sound.