The "Avengers: Age of Ultron" will also be the vehicle to tease the next superheroes that may appear in the Marvel Cinematic Universe. With the addition of Wonder Woman on "Batman V Superman" Marvel may find the need to amp up their female cast.

However, continuity is a big deal for Marvel and many observers say that this continuity is their main advantage over the other Superhero studios.

If they should introduce a new female superhero, it should be relevant to the storyline and also be related to the current cast.

Moviepilot names some candidates:

"Moondragon: Daughter of none other than the comic relief of Guardians of the Galaxy's Drax, Moondragon is a hero that may be coming quicker than you think. No matter which side of this moral debate you're on, Moondragon is an openly bisexual hero, and nobody can deny that Hollywood is currently taking it's sexual diversity very seriously. Could Moondragon be introduced in the MCU, and take the risk of upsetting more conservative fans?"

Marvel may turn a blind eye on that. They can choose to proceed without portraying that detail.

"Mockingbird:  She is closely related to the Avenger Hawkeye, as well as Captain America's nurse-from-down-the-hall who turns out to be a SHIELD Agent, Agent 13. Being Agent 19 herself, Mockingbird has abilities equal to Black Widow when it comes to hand-to-hand combat, and is actually married to Hawkeye. If they ever were to do a SHIELD movie, you could be sure that Nick Fury, Agent 13, Hawkeye, Black Widow, and Mockingbird would be featured. Say hello to the coolest movie idea that will likely never happen."

They can always re-write it, and according to rumors Black Widow will probably hook up with the Hulk. If Hawkeye survives "Age of Ultron" it is definitely a good idea to introduce Mockingbird.

"Ms. Marvel: She is definitely both a fan favorite and a studio favorite, as there have been numerous suggestions that the studio has an abundant collection of development towards a potential movie. Having been a major Avenger, and successor to one of the classic Avengers, Captain Marvel (later even taking up his mantle), she's a necessity to the Marvel comic universe that should definitely transfer over to cinematic universe. Not featuring her in the films would be a disappointment and a major wasted opportunity."

Ms. Marvel, as the name would be appropriate, would be the MCU's worthy answer to Wonder Woman. Still not as popular as the mainstream Wonder Woman, she can definitely give the Amazon Princess a run for her money if she the casting is right!

Which female superhero do YOU want to see?