I don't recall any references to Yevir in the DSN novels since Zero Sum Game; my suspicion is that his story may have been one of the plots that were dropped for the four-year jump.
Yevir's character arc was pretty much over by the time of his last appearance. He began as a self-righteous zealot convinced of his own moral infallibility, and then became a person who could see other points of view enough that he went to Cardassia to hook up with the Oralians. His plot wasn't dropped so much as it was over
And since none of the recent books have had much to do with the Oralians or Bajoran religion not specifically about the Prophets and wormhole, there really hasn't been an organic place for him to cameo without it feeling incredibly forced.
Also nobody likes Yevir. That's just science.