The director of the Pillars of Eternity games said that the team at Obsidian would need to “re-examine the entire format of the game” if they go forward with a third title.
In a Tumblr post published on Friday, series director Josh Sawyer wrote that Pillars of Eternity II: Deadfire didn’t sell as well as the studio hoped, and that it’s not up to him whether another game gets to be made. He did say that fans can expect some changes if another sequel comes out.
“…I do think that the relatively low sales of Deadfire mean that if we consider making another Pillars game in this style, we’re going to have to re-examine the entire format of the game,” Sawyer wrote.
Source: IGN.com Obsidian Dev Says They Need to "Re-Examine Entire Format" Before Making a Pillars of Eternity 3