Well, perhaps the way the stargate technology in the Heliopolis fanfiction is different from the original. It could have enhanced features like faster travel or the ability to open multiple gates simultaneously. This would lead to more complex storylines and interactions between different worlds.
I'm not sure specifically as it depends on the particular fanfiction. But often there could be a brave explorer type character who is eager to discover what lies beyond the stargate in Heliopolis.
One interesting concept could be the combination of the Sentinel's unique abilities with the technology and settings of Stargate. For example, how the Sentinel's heightened senses might interact with the alien technologies in the Stargate universe. Another could be the character crossovers, like how the Sentinel characters might fit into the existing Stargate teams and their dynamics.
In farscape stargate crossover fanfiction, a fascinating idea is the combination of the different methods of space travel. Farscape has its own style of starship travel and Stargate has the wormhole - based travel. Writers could create stories where characters have to figure out how to use both methods to reach a common goal. Additionally, the clash of different leadership styles from the two shows' characters can add drama. Some characters are more authoritarian while others are more democratic, and seeing how they interact in a crossover situation can be very interesting.
The idea of a self - inserted character changing the course of major events in the Stargate storyline is also fascinating. They could potentially prevent a major disaster that was supposed to happen in the original plot. Or, on the other hand, they could accidentally set off a chain of events that leads to a completely different outcome for the Stargate universe.
Well, a cool concept is the character interactions. Imagine characters like Colonel O'Neill from Stargate meeting Commander Adama from Battlestar. Their leadership styles are different, and seeing how they would work together or clash would be fascinating. Also, the idea of the Goa'uld from Stargate trying to take over the Battlestar ships or manipulate the Cylons is an exciting plot point in some crossover fanfictions.
One interesting concept is the stargate itself. It's a device that allows for instantaneous travel between different planets. Another is the various alien races, like the Goa'uld with their parasitic nature and the Asgard with their advanced technology.
One interesting concept could be the combination of different Alteran technologies. For example, how their advanced energy manipulation might be used in new ways when combined with other elements from the Stargate universe. Another aspect could be the exploration of Alteran knowledge about the Ancients' origin and how that knowledge might cross over to change the understanding of characters in fanfiction.
One interesting concept is alternative timelines. Fan fiction often explores what would happen if certain events in the Stargate SG1 series occurred differently. For example, if Daniel Jackson hadn't ascended the first time. Another concept is character crossovers, like bringing in characters from other science - fiction universes and seeing how they interact with the Stargate SG1 crew. Also, there are fictions that focus on the backstories of minor characters, giving them more depth and development.
One interesting story could be about a new alien race that the SG1 team discovers. This race has a unique culture and technology that challenges the team's understanding. For example, they might have a way of traveling through time, which leads to all sorts of adventures as SG1 tries to figure out how it works and how it could be used or stopped if it's dangerous.
There are fanfictions that deal with time - travel in the Stargate SG - 1 universe. The team might go back in time to prevent a major disaster from happening, like stopping the Goa'uld from ever rising to power. Some fanfictions also focus on the Asgard, exploring their culture and technology more deeply. And then there are those that introduce new alien races that the team has to interact with, which can lead to all sorts of interesting plot twists.