There's a good chance they will. Comic Con is a major platform for promoting and generating buzz for upcoming MCU films and shows. But it depends on their schedule and promotional plans.
You can try visiting official comic book stores or their online platforms. Some popular ones include Marvel's official website or digital comic subscription services.
They contribute in several ways. Firstly, they keep the fans engaged between movie releases. They also introduce new concepts and ideas that might later be incorporated into the movies. For instance, some new villains or plot twists can first be tested in the graphic novels. Also, they can provide different interpretations of the characters, adding more dimensions to the overall MCU franchise. Moreover, they can attract new fans who are more into reading graphic novels rather than just watching movies.
Not always. While the MCU draws inspiration from the comics, there are often changes and adaptations made to fit the cinematic universe and modern audiences.
The origin stories give depth to the characters. Captain America's origin, with his roots in World War II, adds a historical and moral weight to the MCU. His values shape his actions and influence other characters. Also, his origin story allows for interesting time - travel and alternate - reality plotlines later in the MCU.
You can try Archive of Our Own (AO3). It has a large collection of fanfictions, including many MCU DC crossovers. Just use the search function and type in relevant keywords like 'MCU DC crossover' to find what you're looking for.