Marvel and Disney are certainly riding high this past year with the success of Avengers. They've definitely milked and will continue to milk all the worth out of the characters the great Stan Lee, Jack Kirby and Steve Ditko created which is what we want. But the characters currently in the within the MCU are enough tell a great story in an movie but is it the eventful movie that fans deserve. The reason I say that is their are other characters that are important in the Marvel universe that the MCU need to fulfill it's true potential, those characters being the Fantastic Four, Silver Surfer and Nova. I'm pretty sure a Nova movie or cameo is coming in the near future with Guardians of the Galaxy on the horizon due to his connection to the Guardians. It's no coincidence that Marvel Studios tried to strike a deal with Fox to allow them to be able to use Silver Surfer and Galactus in the MCU in exchange for an extension to get an Daredevil movie up and running. Kevin Feige can downplay the fact that other studios own the movie rights to Marvel properties but he know the MCU roster is incomplete.
Richard Rider better known as Nova, an member of the intergalactic peacekeeping force Nova Corps, he is one of Marvel's most cosmically powerful superheroes and is an essential part of both the Infinity Gauntlet and Thanos Imperative story arcs. Nova occasionally teams with the Guardians of the Galaxy and we know the history between that of Thanos and the GOTG. It seems that the GOTG movie with be somewhat inspired from some of the events from the Thanos Imperative storyline so why not throw Nova into the mix, they will need a powerful ally out of this world to help take down the Mad Titan.
Marvel Studios will need The Fantastic Four in order to introduce Norrin Radd a.k.a Silver Surfer and Galactus into the mix of the MCU. The big bad villain the Avengers will takek on is Thanos and it is through Thanos that Silver Surfer learns how Galactus altered his soul for him to become his herald. Silver Surfer also play a major role in the Infinity Gauntlet story arc, he is the one that warns the Avengers of the threat that is the Thanos. At one point the Silver Surfer takes it upon himself using his power cosmic to take on the Mad Titan toe to toe by himself. For now the Infinity Gauntlet is locked up tight in Odin's Vault as we saw in Thor so who know when Thanos will get his hands on it.
And that leaves me to the devourer of worlds Galatctus. Fans are waiting for the day that Galactus is properly portrayed on the big screen unlike that lame cloud depiction of him in Rise of the Silver Surfer. Yes we love to see our heroes do battle against our favorite villains but why not have Galactus vs Thanos in a movie based off of The Infinity Gauntlet story arc.