The release of the trailer on December 3 led to the DAU increase in multiple titles of the series. However, days after it went back to normal.
The interest in the video content about The Last of Us increased a lot after the release of the trailer.
After the release of the TV series, DAU in the original The Last of Us increased by 300%. Number of players in The Last of Us: Part I and The Last of Us: Part II increased too.
Sales effect
GfK reports that The Last of Us: Part I sales in the UK increased by 238% after the TV series release.
Would be v interesting to see this compared to the impact of Paramount's Halo series on those games.