PLASTICA-MAN
Member
its naughty dogs engine..so an updated version of the same engine that powered U4.
They only have one engine. He just means the engine has been updated since Uncharted 4.
The Lost Legacy already looked updated with betetr skin shader textures, animations, cloth physics etc... Maybe that is why it is a standalone add-on (like Infamous First Light) because it doesn't share the same exact engine code from Uncharted 4 because it was a little updated.
It doesn't surprise me if Naughty Dog could achieve a bigger upgrade with The Last Of Us Part II.