The current timeframe of Krynnspace and the Spelljammer campaign setting is 16 years past the War of the Lance. As such, much of Krynn's history has yet to happen within the context of Spelljammer.
Takhisis is focusing not only on the world of Krynn, but also outward towards the stars. During the time, the Dragonfleet has emerged, and is the dominant force of evil within the sphere. Standing against them are the Knights of Krynnspace, once known as the Star Knights.
The sphere is filled with the conflict between good and evil, with the Balance in question. Travelers from beyond the sphere of Krynnspace are taking a new interest as well, as new opportunities are opening up. However, those same travelers are being cautious, as some of the new activity in Krynnspace is due to the Dragonfleet.
While the Knights of Takhisis invade Ansalon, the Dragonfleet has gone on the offensive within Krynnspace, and a war between them and the Knights of Krynnspace erupts. Contact between Krynnspace and other spheres is minimal, as travelers are leery of getting in the middle of a war.
The Dragonfleet successfully destroys the spelljamming ports in Palanthas and Kristophan. It is rumored that a huge explosion shook Mt. Nevermind, destroying their spelljamming port as well.
The world of Krynn is left without a spelljamming port.
In the meantime, Chaos is released from the Greygem, and begins his assault against the gods. Chaos attacks the creations of the gods on many levels, from the world of Krynn to the Abyss and even to the stars.
Long-dead volcanoes on the world of Reorx erupt, and from them new fire dragons are born. These dragons appear as living lava dragons, and the peoples of Reorx face their greatest foes. Other fire dragons appeared from the sun itself. These dragons, not requiring air, began an assault against the spelljamming vessels within the sphere.
The Felljammer used its accursed power to drain magic to drain as much as it could off of Chaos. However, the tiny ship absorbed too much, and was destroyed in the process. It is rumored that the Spelljammer itself was witness to this, and assaulted Chaos, although none will speak of the event. (See the article on the Felljammer on Beyond the Moons.)
As Chaos was defeated, his minions vanished, leaving the sphere quiet. A graveyard of ships now orbits the world of Zivilyn. Some say that ghosts and apparitions can be seen amongst the Graveyard of Ships.
There was one noticeable aftereffect of the Chaos War. The planet Krynn had disappeared.
Centuries ago, the dragon Khellendros, known in the common tongue as Skie, came to the world of Krynn from a world of dragon overlords. Skie devoted himself to Takhisis and gave her the secrets of the portals he traveled to get to Krynn.
Takhisis orchestrated her master plan, to where the god Chaos was released from the Greygem. While many thought that she fled the world, in fact she was preparing to steal it. Just as Chaos stepped on the kinder Tasslehoff Burrfoot, Takhisis stole the world through a portal.
As for where Krynn went to, nobody knows. Some say that it has traveled to another sphere, where it orbits a new sun and has a new moon. Others say it was destroyed. Still others say that it was taken to an entirely new plane of existence.
Many search the spheres for answers, but none are forthcoming. The world of Krynn, it seems, has been cut off from the rest of the spelljamming universe.
After the Chaos War, many people who had hailed from the world of Krynn found themselves without a home. Many were at a loss of what to do, and so they traveled to the planet Reorx to set up colonies.
The remaining tinker gnomes within the sphere settled on the planet Reorx as well. They have a used dwarven citadel, which the inhabitants of Reorx refer to as Citadel Hunkajunk. A committee has been formed to find the world of Krynn, and several gnomes' life quests revolve around making inventions that will take them to Krynn.
The Minotaur Fleet decided that they would seek their ancient brethren, who were rumored to travel to another sphere called Tauruspace. The fleet has not been heard from within the boundaries of Krynnspace since.
The Dragonfleet, without the support of Queen Takhisis, found itself in dire straits. The Knights of Krynnspace were able to finally defeat the remnants of the Dragonfleet for good save for a few that became pirates and petty thugs.
In the aftermath of the Chaos War, the gods spend a lot of energy searching for the world of Krynn. The entire sphere was searched. Scouts went to other spheres as well, all reporting nothing.
Finally, nearly 40 years after the Chaos War, the moons of Krynn disappear as well. As representatives from various groups within the sphere met on planet Reorx, a befuddled old man spoke before them. A tear formed in his eye.
"Every parent knows the joys of watching their children grow from tiny babies to adults, becoming men and women in their own rights. It takes a lot of peanut butter and jelly! You can't raise your kids on TV, either!"
The old man rambled for a while, as people asked themselves what "TV" was. After a couple of minutes, the old man grew very serious.
"As parents watch their children, so too have we gods watched you, the peoples of Krynnspace, grow. You're all grown up now, and you're ready to leave the nest. There are many other spheres out there, and many other worlds. As a kender friend of mine might say, 'I'm not sure if I can see them all within my lifetime, but I would certainly like to try!'"
"We've done our job, and we're proud to see all of you leaving the nest. Yet still, we have other children who are not quite grown up yet - the people of Krynn. We gods have found the world, and must go to save it from the clutches of the Dark Queen."
"And so, we bid you all farewell. We're proud of you all."
And after finding his hat (which was on his head), the old mage disappeared, leaving behind only a chicken feather.