A more unique plot could be a crossover with a non - Stargate sci - fi universe, like Star Trek. The Destiny crew could encounter a Starfleet vessel. There could be a cultural clash at first, as the two groups have different ways of operating and different technologies. But they soon realize they have a common goal, such as stopping a powerful alien race that is threatening both their universes. This would involve sharing technology and strategies, and exploring how the characters from each universe interact and learn from each other.
Another plot could involve a crossover with Stargate Atlantis. The Destiny crew could find themselves in the Pegasus galaxy and have to team up with the Atlantis team. They might face a common enemy that has the ability to travel between galaxies. The two crews would have to combine their knowledge and resources. For example, the Destiny crew's experience with long - range space travel and the Atlantis crew's understanding of the unique threats in the Pegasus galaxy could be crucial in defeating the enemy.
One idea could be to cross Stargate Universe with Stargate SG - 1. Maybe the Destiny crew discovers an ancient technology that was originally developed by the SG - 1 team on Earth. This could lead to a joint mission where both crews have to work together to unlock the secrets of the technology and use it to save both their ships and Earth from a new threat.
One idea could be that the Stargate team discovers a world where the Sentinel abilities are a natural part of the population. The Sentinels' powers could be used to help the Stargate team in their exploration and battles against alien threats. For example, their enhanced senses could detect hidden Goa'uld symbiotes or hidden traps in ancient ruins.
Maybe a character from Stargate, say Daniel Jackson, gets stranded in the Farscape universe. He could use his knowledge of ancient cultures and languages to help the Farscape crew with some of their own mysteries. And in return, the Farscape crew could teach him about their unique technology and ways of survival in a very different and often hostile galaxy.
One idea could be a Highlander character finding a Stargate and being transported to different planets. They could use their immortality to survive in the various dangerous situations on alien worlds and perhaps encounter Goa'uld who are interested in their immortality.
Maybe there's a race in the Stargate universe that has developed a technology similar to the Borg in Star Trek. The Starfleet and Stargate teams come together to study this new threat. They could exchange knowledge about artificial intelligence and combat strategies. For example, the Stargate team might introduce the concept of Ancient technology, which could be used to counter the Borg - like threat in ways that Starfleet has never considered.
A possible plot could involve an immortal villain from the Highlander world using the Stargate network to spread chaos across different planets. The SG1 team, with the help of some friendly Highlander characters, has to track him down and stop him before he causes too much destruction.
Well, in Roswell Stargate crossover fanfiction, there might be a plot where the characters from Roswell get involved in Stargate missions. Imagine the Roswell gang having to deal with the Goa'uld or the Replicators. It could also be about how the technology from Stargate affects the lives of the Roswell aliens. For instance, the Stargate could be a way for them to find a cure for their alien - related problems or a means to enhance their powers.
One idea could be that the Spartans from Halo are sent through a Stargate to an unknown planet in the Stargate universe. They have to team up with the SG teams to fight off a common enemy like the Flood that has somehow spread to that planet. Another could be a scenario where the technology from both universes is combined. For example, the Covenant's energy shields are integrated with the Stargate's shield technology.
In a Stargate Babylon 5 crossover fanfiction, a possible plot could revolve around a mysterious energy source. This energy source could be something that is of great interest to both universes. Scientists from Stargate and Babylon 5 could team up to study it. However, different factions within each universe may have different ideas about how to use this energy. This could lead to internal conflicts as well as conflicts between the two universes. It would be a story full of political intrigue, scientific discovery, and adventure.
One idea could be that the Death Eaters in Harry Potter form an alliance with the Goa'uld from Stargate SG1. The combined forces of dark magic and alien technology would be a huge threat. The heroes would then have to combine their skills, with the wizards using spells to counter the Goa'uld's energy weapons and the SG1 team using their military tactics against the Death Eaters. Another idea is that the Hogwarts students go on a field trip through the Stargate. They encounter various alien races and have to use their magic to survive and make friends. This could be a great way to show how magic can be applied in a completely different setting.
One idea could be a crossover with Star Trek. Imagine the Stargate team traveling through a wormhole and ending up in the Star Trek universe. They could interact with the Federation, learn about their technology like the warp drive, and perhaps even help solve a crisis together.