That's actually a tough one, hmm.
I think TLOU will definitely open stronger than WWHD and get to the million in physical sales faster than WWHD, but lifetime is hard to say because Nintendo games have such strong legs.
It all depends on how much Sony wants this in PS4 owners hands, I personally believe they want that very much since I'm sure that they want TLOU to be one of their new big series on the PS4, so I can very much see Sony adding this to a holiday bundle or just some bundles over the next couple years in general as to get as many new people to play this on PS4 as possible.
That's at least what I would do if I was in Sonys position, sell the game standalone for now, later bundle it until it reaches maybe 2-2.5 million or even more and then as the final kicker offer it for free on PS+ a month before the sequel releases.
So to answer the question: Depends on how much Sony wants TLOU:R to sell. 







