i'm sure that the Last of us part2 will be the best selling Sony First Party Ip from the whole Ps4 Generation...

only watching the Hype from the Reaktion Videos at Psx 2016, when the Game were showed the first time at the Public, give us signs that this will be really big

https://m.youtube.com/watch?v=4K0C3eUS4uE&t=120s

Depends on how the PS5 version is handled. If it's just the PS4 disk placed in the PS5 and played via backwards compatibility, with a patch giving better frame rate and res (basically think of it as a Pro Pro version). Then yes, most likely. Also depends on if you consider spiderman "first party". Because that game sold 9 million within 3 months, and without December included. I bet that game reaches 15 million, could be even close to 20 million when all is said and done

Really probable, but you should give more content to the OP.

So, what games it's gotta beat and how much did they sell?

I can certainly see that happening. It depends how they handle the PS5 as well. We know it will be playable via BC but will they release a remaster a year later for PS5 like they did the original?

Spiderman will be the best ps4 selling game. When they first showed it at e3 i said it had the potential to sell 10 million and was i way off because it will sell at least 15 million

Uncharted 4 is at around 16.25m as of may 21st 2019, GoW 11m as of May 21st 2019

Horizon Zero Dawn "well over 10m" as of February 28th 2019 - https://blog.us.playstation.com/2019/02/28/horizon-zero-dawn-celebrates-second-anniversary-10-million-copies-sold-worldwide/

Spiderman had sold over 9m as of November 25th 2018, considering this is only 2 months after it launched this could be a contender to take Uncharted 4's crown, could be at anywhere from 11-14m by now. - https://www.sie.com/en/corporate/release/2019/190108.html

TLOU Part II will be a 10m+ seller, not sure if it's going to reach the 16m+ mark. Especially if it launches close to PS5.

Unsure. Uncharted 4 seemed to have sold a lot and Spiderman is still going.

Nope

Yea I'm not sure Spiderman is going strong. I didn't even really like the game but even my wife who doesn't play games at all has been playing it.