If the Sith allied with a villain in the MCU, it would completely change the power dynamics. Let's say they teamed up with Ultron. Ultron's technological might combined with the Sith's Force abilities would make for a formidable force. The Sith could use their mind - control powers on the Avengers, while Ultron could launch his mechanical attacks. This alliance would force the heroes to think outside the box and find new ways to combat such a strange and powerful combination of enemies.
They could potentially be introduced as a new threat. Maybe they find a way to cross over through some sort of interdimensional rift. The Sith's dark side powers would contrast greatly with the heroes in the MCU.
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.
Captain America's origin story is quite interesting. Steve Rogers was a weak but very brave and kind - hearted man. He was selected for an experiment to create a super - soldier during World War II. The experiment transformed him into the strong and patriotic Captain America. His origin is deeply rooted in the war - time context and the need for a symbol of hope.
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.
There are many writers who have contributed to the MCU comics. For instance, Brian Michael Bendis and Jonathan Hickman have played significant roles in shaping the stories.