Their relationship could develop through a series of adventures. For example, they might have to stop a powerful villain together. In the process, Damian's impulsive nature could clash with Thomas' more methodical approach. However, over time, they realize that they can complement each other. Thomas could help Damian think more strategically, while Damian could inspire Thomas to be more bold and take risks in their fight against evil.
Often, it starts with curiosity. Damian may be curious about his grandfather he never met. Thomas, on the other hand, is intrigued by this young Wayne. As they interact more, respect grows. Thomas sees Damian's potential and Damian looks up to Thomas as a part of his family's great history.
One possible scenario could be a time - travel or alternate universe situation. Thomas Wayne might be shocked to see Damian, his grandson, considering his own early death in the normal Batman timeline. He could initially be skeptical or even a bit hostile, thinking Damian is some sort of threat. But as they start to communicate, Damian could show his skills and determination, and Thomas might start to see the family resemblance not just in looks but in spirit.
In a fanfiction, their relationship might develop in a rather unexpected way. They could be initially forced to work together against their wills. But as they get to know each other, Damian would be drawn to Wonder Woman's strength, both physical and mental. He might start to look up to her as a role model. Wonder Woman, on the other hand, would be intrigued by Damian's complex personality. She would try to help him deal with his inner demons, like his anger and his need for approval from Batman. Over time, they would develop a deep, platonic relationship where they support each other in their superhero endeavors and in their personal growth.
Well, initially, Poison Ivy would likely be hostile. She has her own agenda when it comes to nature, and Damian, coming from the Batman world, represents a different set of values. However, as she gets to know him, she might see that he's not just a mindless enforcer. Damian's respect for life in his own way, which he has learned from Batman and his own experiences, could make Poison Ivy re - evaluate her view of him. And perhaps, she could start to see him as an ally in some aspects, especially if they face a common threat to nature together.
One interesting scenario could be Thomas Wayne seeing Damian's combat skills and being both proud and a bit shocked. After all, Thomas may not have expected such a young and fierce fighter in the family. Another could be them having a deep conversation about family values, with Damian learning from Thomas about the Wayne legacy from its very origin.
It might start off rocky. Damian, with his strict upbringing, might find Danny's more carefree attitude annoying. But as they face threats together, like a powerful ghost attacking Gotham or a villain targeting Danny's family in Amity Park, they would start to respect each other's abilities.
Damian would likely become more cynical in the Batman Beyond setting. The darker, more technologically advanced yet decaying Gotham would harden his already tough personality. He'd probably be less trusting, especially with all the new threats that come with advanced technology.
In fanfiction where Damian Wayne is in an abusive relationship, it's often a very dark and complex scenario. It might explore how his strong and often brash personality reacts to such a difficult situation. Maybe he initially tries to handle it alone, relying on his combat skills and training, but gradually realizes he needs help.
The encounter could be filled with tension. Bruce might be angry at first, blaming Thomas for leaving him so early in life. But as they talk, they start to understand each other better. Thomas could share his own hopes and dreams for Gotham that he never got to fulfill, and Bruce could see a new side of his father. The description could include details of their body language, like Bruce clenching his fists at first and then gradually relaxing as they talk.
Damian Wayne might initially react with defiance. Given his upbringing and combat skills, he may not be one to easily submit to abuse. He could try to fight back physically or verbally.