One character that would be fascinating is Medivh. As a powerful mage with knowledge of time and magic, he could either be a helper or a hindrance to Anduin. He might know secrets about the time travel that Anduin is doing and use it to his own ends. Another interesting addition could be Illidan Stormrage. His complex relationship with power and his own past actions could make for some intense interactions with Anduin as he travels through time.
One popular theme is redemption. Anduin might travel back in time to fix past mistakes either his own or those of his predecessors. For example, he could try to prevent the fall of Lordaeron. Another theme is discovery. He travels through time and discovers long - lost secrets about Azeroth or his family. It adds an element of mystery to the story.
One interesting Anduin Wrynn time travel fanfiction could be 'Anduin's Time - Journey Through the Ages'. It shows Anduin traveling back in time to key moments in Azeroth's history and trying to change things for the better. He meets his predecessors and learns valuable lessons about leadership.
In some Anduin time travel fanfiction, a plot twist could be that Anduin travels to a parallel timeline where everything is the same except for one key difference. Maybe in this timeline, his father, Varian, never died. This changes Anduin's whole perspective and he has to decide whether to try and bring this change back to his own timeline. It could also be that he time travels and meets an alternate version of himself who has very different values and goals, leading to an internal struggle for Anduin.
I don't know who the author of the 'anduin short story' is. There could be many authors with different styles and backgrounds who might write a story about Anduin.
Issei himself is of course very interesting. His reactions to different time periods and how he uses his knowledge from the future can be really engaging. Then there's Rias. Her presence can add a layer of complexity, especially if she has different relationships with Issei in different timelines. Another interesting character could be Vali. His rivalry with Issei can take on new dimensions when time travel is involved, like competing in different historical battles or for the affections of a character in a different era.
Morgan could be an interesting addition. He might accidentally get caught up in Chuck's time - travel adventures. His comical nature could provide some light - hearted moments in an otherwise complex time - travel plot, like when he misunderstands the technology or customs of a different time.
One character that would be interesting to include is Abel Gideon. He was already a part of Hannibal's world, and in a time - travel story, he could have a different role. Maybe he travels with Hannibal or is sent to a different time to hunt him down. Also, Freddie Lounds could be a great addition. She's always looking for a good story, and Hannibal's time - traveling would be the ultimate scoop. And then there are the victims. What if some of the victims from different time periods were able to come back and haunt Hannibal? That would add a spooky and interesting element to the fanfiction.
Well, Garrosh Hellscream could be an antagonist in this fanfiction. Even if Anduin goes back in time, Garrosh's thirst for power and his extreme views could put him at odds with Anduin. Garrosh might see Anduin as a threat to his own plans for the Horde. The Nathrezim, those sly demons, could also be antagonists. They are masters of manipulation and could try to use Anduin's presence in the past to their own advantage. And don't forget about the various cults that serve the Old Gods. These groups would likely oppose Anduin as he tries to disrupt their plans to free their dark masters.
Kristoff is often a popular character to include. Since he's Anna's love interest, his presence can add an element of romance and also his skills as an ice - harvester can be useful in different time - travel scenarios. Olaf is another great addition. His naivete and charm can provide some comic relief in tense time - traveling situations. Also, the trolls could be included. They have a lot of knowledge about magic and the past, so they could play a crucial role in guiding Elsa and Anna during their time travels.
One possible fanfiction could be about Anduin Wrynn's encounter with a Jade Dragon. Maybe he's on a quest in Pandaria and stumbles upon a hidden lair of a Jade Dragon. The dragon could initially be hostile, but Anduin's peaceful nature slowly wins it over, and they form an unlikely alliance to face a common threat in the land.