One interesting scenario could be that the Avengers find out about Tony's insecurities regarding his role in the team. They might then be more understanding and supportive, changing the dynamics within the group.
Another scenario could be that they read his thoughts about his relationships with them. He might have unspoken feelings of friendship or admiration for certain members, and when they find out, it could strengthen their bonds. Or if he had some negative thoughts, it could cause some drama as they try to work through it.
Perhaps they discover his secret plans for new tech that he was hesitant to share. This could lead to either excitement and collaboration, or some conflict if they don't agree with his ideas. For example, if Tony was thinking about creating a super - powerful weapon, some Avengers might oppose it on moral grounds.
Natasha could also be greatly affected. She is perceptive and if she reads Tony's thoughts, she might use that knowledge to manipulate situations within the team for the better or worse. Maybe she discovers Tony's concerns about a potential threat and uses her skills to help address it.
One scenario could be when the Avengers accidentally damage his technology. Tony Stark is very attached to his inventions, and if, for instance, Thor's hammer smashes one of his high - tech gadgets during a battle, he might get angry at the Avengers for not being more careful. His anger would stem from the fact that he spent a lot of time and resources creating those things.
Maybe Tony has been lost in space or some other difficult situation. When he finally makes his way back, Pepper is waiting at the Avengers compound. Their reunion is filled with emotions. Pepper might be a bit angry at first for him putting himself in danger, but then she realizes how much she missed him and they share a passionate kiss.
Well, perhaps they end up in a time - travel adventure. Tony's scientific knowledge might be the key to getting them in and out of different time periods, while Starg could have some premonition - like ability that warns them of the dangers in each era.
In some fanfictions, they might reunite during a big crisis that affects the entire world. They are forced to put aside their differences and come together. Tony uses his intelligence to figure out a plan, and Steve, with his leadership and combat skills, leads the execution. Their reunion becomes a symbol of hope for everyone around them.
In fanfiction, if the Avengers read Tony's file, it might vary greatly depending on the plot of that particular fic. They could be shocked by what they find. For example, if there were details about his family history or his true motives behind some of his actions. This could either strengthen their bond or create a rift. If the file contained information about a new technology he was working on secretly, it could lead to different reactions. Some might be excited, while others might be worried about the implications.
One interesting scenario could be Jarvis helping the Avengers with a complex mission by providing real - time data analysis. For example, when they are facing an enemy with unknown powers, Jarvis quickly scans the situation and gives advice on how to counter the powers.
A really cool scenario could be Loki using his shape - shifting abilities in a very creative way. He could transform into an enemy's most trusted ally and then manipulate the situation from within. By doing this, he can gather crucial information and use it to save the Avengers at the last minute. Maybe he discovers the location of a bomb or a weapon that is about to be used against the Avengers and is able to disable it just in time.
One interesting scenario could be Wolverine's reaction to the high - tech gadgets of the Avengers. Maybe he's initially skeptical but then sees their usefulness in battle.
One scenario could be that the Avengers are really confused at first by the unique world of RWBY. They might be intrigued by the use of Dust and the different combat styles. For example, Thor could be really interested in how Ruby uses Crescent Rose, comparing it to his own hammer. Another could be that the Avengers start taking notes on the teamwork in RWBY and try to apply it to their own battles.