Picard Season 3 Left Behind A Big DS9 Changeling Question

The finale of Star Trek: Picard season 3 answered many of the season’s questions, but the fate of the rogue Changelings who had infiltrated Starfleet remains unclear. While the Borg had become the more pressing threat by the end of Picard season 3, it was the Changelings that made the attempted Borg takeover possible. The shapeshifting lifeforms originated in the Gamma Quadrant and existed as a liquid in their natural form as part of the Great Link. They appeared throughout Star Trek: Deep Space Nine, and a group of Changelings known as the Founders sought to impose their rule over the entire galaxy. Known as the Dominion, this group was the primary antagonist of Star Trek‘s Dominion War.