During the first two seasons of Star Trek: Deep Space Nine, the Dominion are biding their time. While observing the comings and goings through the Bajoran wormhole, the Dominion wait to see if ...

And while Star Trek #28 shows the origin of Bajoran society, it also explores the origin of the wormhole. Star Trek: Deep Space Nine never delved into the origin of the wormhole: it just was.