Well, they might be shocked. In the RWBY universe, the concept of betrayal is quite serious. If it's a Rose character being betrayed, the team could first show disbelief. They trust their comrades deeply, so this would be a huge blow to their morale.
They could also become angry. Ruby, for example, is a passionate character. If someone she cares about (from the Rose family perhaps) is betrayed, she'd be furious. She might even go on a quest for revenge, or at least seek justice for the wronged party.
They might be shocked. In many cases, when a character like Jaune is betrayed in fanfiction, the RWBY characters could initially show disbelief as they've come to know him. It would disrupt their view of the group dynamic.
It could be an enemy in disguise. Maybe a Grimm has managed to infiltrate their ranks in a clever way and then betrays the Rose character. Grimm are known for their devious ways and this would be a very RWBY - like scenario.
Perhaps they would show excitement when seeing their favorite characters in intense battles as depicted in the 'rwby reacts deadliest warrior fanfiction'. Since the 'Deadliest Warrior' concept usually involves some really cool and over - the - top fight scenes. And if the fanfiction is well - written, it can bring out a lot of emotions from the RWBY characters who are reacting to it.
They might be surprised by the complex and often dark themes in Warhammer fanfiction. RWBY characters are used to their own universe's rules and aesthetics, so the gritty and elaborate world of Warhammer could be a shock.
These different reactions based on their personalities would create a lot of tension and conflict within the fanfiction. It would also show the complexity of their relationships. For instance, Ruby's attempts at reconciliation might clash with Yang's more aggressive approach. Weiss's pride could make it difficult for her to forgive easily, while Blake's empathetic view could be a bridge between the two extremes. This all would make for a very interesting read in the fanfiction.
They might be amazed at the unique skills. For example, Ruby could be excited to see some super - fast combat skills as she herself values speed in battle.
Well, in 'rwby reacts to honest trailers fanfiction', the reactions would likely depend on the nature of the content in the honest trailers. If the trailers are brutally honest about the flaws in RWBY, the characters might be defensive at first. But as they keep reading the fanfiction, they could start to see the truth in it and have more introspective reactions. They might also laugh at some of the more comical takes on their own actions and personalities in the fanfiction.
In the 'rwby reacts to the future fanfiction', RWBY might have a range of reactions. Ruby could be full of curiosity, eager to learn more about what the future holds for her and her friends. Weiss might initially be skeptical, analyzing every detail to see if it's plausible. Blake could be more reserved in her reactions, quietly taking in the information while being a bit wary. Yang, on the other hand, might be more vocal, either expressing her approval or her doubts loudly. They would all be influenced by their own personalities and experiences up to that point in the story.
They might be really shocked at first. The RWBY characters are from a different universe, and the Transformers are huge mechanical beings. Ruby, with her innocent nature, would probably be in awe of the Transformers' power and size.
They might be shocked at the creative interpretations in the fanfic. Since Angry Joe has a very distinct style, the RWBY characters could be taken aback by the way they are depicted in relation to him.