One interesting idea could be the political implications of their baby. Since Jon and Daenerys both have claims to the throne, their child would be a powerful heir with a complex lineage. Another idea might be the cultural impact. Their baby could symbolize a union between the North and the Seven Kingdoms, bringing different traditions together. Also, the baby could be a key factor in uniting the remaining factions after the great war, as it represents a new hope and a future for the war - torn land.
Some ideas in this fanfiction could revolve around the baby's upbringing. Who would raise the child? Would it be in the North or in the lands where Daenerys once ruled? The different values and teachings of these two regions would shape the baby's character. Also, the baby could be a catalyst for old enemies to become allies. For instance, former foes might see the child as a symbol of a new beginning and put aside their differences to support its future.
One idea could be a story where Aemon grows up in a world trying to heal from the previous wars. He has the combined traits of Jon and Daenerys, being both strong - willed like his mother and having a sense of honor like his father. He could be on a journey to discover his own place in this new world, facing challenges from those who still hold grudges against his parents' union.
Well, in some fanfictions, the baby could be a symbol of hope. As Jon and Daenerys' child, it represents the union of two powerful houses. The baby might grow up to be a great leader, trained in both the ways of the Targaryens and the Starks. It could bring about new laws and a more just society, learning from the mistakes of the past rulers in Westeros.
One idea could be that the baby is born with a special ability, like being able to communicate with dragons even more so than Daenerys. Maybe the baby's presence unites the remaining kingdoms in a way that Jon and Daenerys alone couldn't. Another thought is that the baby becomes a symbol of hope for a new era, with people from all over coming to see the new heir of the Targaryen - Stark line.
Another fanfiction concept could be a 'what if' scenario. What if Jon was the one who found Daenerys when she first landed in Westeros? This would put Jon in a position of power and knowledge about this new queen. He could act as her guide through the complex web of Westerosi politics. Their relationship might develop more organically as he helps her navigate the land he knows so well, and perhaps they would fall in love more gradually, away from the prying eyes of the other lords and ladies.
Well, a simple idea could be that the pregnancy is a secret at first. Only a few close allies know. Jon and Daenerys have to be very careful to keep it that way. They might have some close calls where the secret almost gets out, adding a lot of tension to the story.
Tyrion Lannister could be involved. He was close to Daenerys and had a relationship with Jon as well. He might be the one to help protect the baby or offer his wisdom in raising the child. Another character could be Ser Davos. He was loyal to Jon and would surely be interested in safeguarding the future of Jon's heir.
One idea could be the baby growing up with unique powers due to the combined bloodlines. Maybe the baby has an uncanny ability to communicate with dragons from a very young age, like it has a special bond with them. Another plot could be about the challenges of raising a child in a world full of political intrigue and power struggles. The baby might become a target for those who fear the growing power of Daenerys and her family.
One plot idea could be that in a world where their genders are swapped, they still have to face the same political challenges. Female Jon, with her Stark honor, and male Daenerys, with his Targaryen ambition, form an alliance that slowly turns into a romantic relationship as they realize they can achieve more together. Another could be a scenario where they meet in a different setting, away from the main events of the original series, and their relationship develops from there.
Perhaps a plotline where they try to keep the pregnancy a secret at first. This could involve them hiding it from their allies and enemies alike. They might be worried about how the news would affect their standing in the various power struggles. Daenerys could fear that it makes her seem weak, while Jon might worry about the reaction of the Northern lords.
One interesting plotline could be their initial meeting being filled with suspicion but gradually turning into mutual respect as they realize they both have a common goal of saving the realm. For example, Jon might be initially wary of Daenerys and her dragons, but as they talk more, they find they can work together against the White Walkers.