What happened to Jeremy Aster?

Per the Memory Beta article on Jeremy Aster;

As an adult, Aster pursued a career in archaeology, and by 2375 was working toward his doctorate at the Rector Institute. That year, he was also involved in a romantic relationship with a woman called Marra. By the end of that year, however, their relationship had ended. (TNG novel: Diplomatic Implausibility)

Jeremy would later assist Worf and Alexander Rozhenko in the Genesis Sector, helping to keep the Moss Creatures from unleashing a new Genesis Wave on the galaxy. During this time, Jeremy joined the House of Martok. (TNG novel: Genesis Force)

Aster also became close with Worf's adoptive parents, Sergey and Helena Rozhenko, and regularly dined at their home. (TNG novel: Diplomatic Implausibility)

He also appeared briefly in the DC Comic "The Lesson"