In some fanfictions, she might die due to a betrayal within the team. Let's say a new member is secretly working for the enemy and they manage to set up a trap for Miss Martian. They could use some sort of kryptonite - like substance that affects Martians and she is unable to defend herself. Also, she could die in a mission where she's trying to rescue a captured teammate. The enemy might have set up a deadly defense system that she fails to bypass and she gets killed while trying to save her friend.
Another scenario could be that Robin is caught in a trap set by a super - villain. The trap could be a time - bomb - like situation where he has to choose between saving himself or a large number of civilians. He chooses the latter and gets killed in the process, leaving his friends in the Young Justice team to avenge his death.
One possible scenario could be that Wally sacrifices himself to save the team from a powerful enemy. Maybe he uses his super speed to create a distraction and gets caught in an explosion. Another could be that he's affected by some sort of dark magic during a mission and it slowly drains his life force until he passes away. Or perhaps he takes on a time - related mission where he has to correct a major timeline disruption but the cost is his own life.
In the fanfiction, perhaps Artemis decides to take on a more solo approach to her vigilantism. She may feel that with her mom gone, she can't rely on anyone else in the same way. This could lead to conflict within the Young Justice team as they try to bring her back into the fold. Also, she might start investigating the circumstances around her mom's death more closely, uncovering secrets that put her in danger.
There's also a fanfic called 'Miss Martian's New Path'. In this one, she has to face a new enemy that targets her specifically because of her Martian heritage. It's full of action and also some really touching moments as she leans on her friends in the Young Justice team for support.
One interesting fanfiction could be about Superboy and Miss Martian going on a secret mission together. They might face challenges that test their relationship and powers. For example, they could be in a situation where they have to rely on each other's unique abilities to survive.
In some scenarios, Robin might be facing a powerful supervillain alone and gets severely injured. For example, he could be up against a foe with enhanced strength and speed, like Deathstroke. The villain could have a well - laid - out trap that Robin stumbles into during a solo mission.
In a fanfiction, Robin could sacrifice himself to save the world from a major threat. He discovers a way to stop an alien invasion but it requires him to give up his own life. He willingly does it, knowing the importance of his sacrifice. His death shakes the foundation of the Young Justice world and his friends have to learn to move forward without him.
In some fanfictions, Batman might sacrifice himself to save the Justice League from an all - powerful enemy. For example, facing a threat that can only be stopped by using a dangerous self - destruct device that Batman activates while the others escape.
In my opinion, the fanfictions that focus on their friendship turning into a romantic relationship are some of the best. It's interesting to see how they navigate their feelings for each other while still being part of the Young Justice team. They both have such different personalities - Superboy being more brash and Miss Martian being more empathetic. When these two personalities interact in a romantic context, it can create a lot of drama and sweet moments. Also, fanfictions that show them training together and growing in their powers side by side are really cool.
Another common theme is her powers. Writers love to create scenarios where she has to use her telepathy or shape - shifting in unique ways. Some fanfictions have her using her powers to solve mysteries within the Young Justice universe. It adds an interesting layer to the stories.