Marvel's Potential Action FranchisesS

Nova, the Human Rocket
The Pitch: "Spider-Man meets The Last Starfighter."
The Explanation: Rich Rider, an everyday American teenager, is chosen by the last surviving member of intergalactic police force the Nova Corps, to take his place and defend the universe from the space pirate who's out to kill them all. Part Spider-Man homage, part Green Lantern rip-off, Nova could have it all, if only moviemakers could disguise the bucket on his head.
Must Read: Essential Nova volume 1.

Marvel's Potential Action FranchisesS

Death's Head
The Pitch: "The Terminator meets Doctor Who."
The Explanation: Everyone's familiar with the concept of the unstoppable killing machine. In fact, everyone's familiar with the concept of the unstoppable killing machine that can travel through time. But what happens when said unstoppable, time-traveling killing machine happens to be a bounty hunter from the future with a strange personal code of ethics and peculiarly English sensibilities, and he's become stranded in our time? Hint: Michael Bay's explosion-filled wet dreams.
Must Read: Death's Head volumes 1 and 2.

Marvel's Potential Action FranchisesS

Starjammers
The Pitch: "Pirates Of The Carribean in space!"
The Explanation: If Marvel could manage to get these X-Men characters away from Fox (The leader of the Starjammers is Cyclops' dad in the comics), then just imagine the movie that could be made from following a group of intergalactic smugglers-turned-freedom fighters around for awhile. All the fun of Star Wars with none of the Jedi stuff? Surely this is a no-brainer.
Must Read: Essential X-Men volume 3 has a good chunk of Starjammer action.

Marvel's Potential Action FranchisesS

Vance Astro/The Guardians Of The Galaxy
The Pitch: "Buck Rogers with super-powers and mild insanity!"
The Explanation: The first man sent on a long-term intergalactic mission, Astro wakes up after ten centuries of suspended animation with telekinetic powers and the discovery that the universe is being enslaved by an alien race. Stealing a space ship and gathering together an intergalactic A-Team, Astro dedicates his life to freeing the human race... Or, at least, changing his name to something less dated. I mean, "Astro"? Really?
Must Read: Guardians of the Galaxy: Earth Shall Overcome.

Marvel's Potential Action FranchisesS

Captain Marvel
The Pitch: "What if Earth's mightiest hero was actually here as an alien spy?"
The Explanation: Firstly, no, he's not the "Shazam" guy. This Captain Marvel is an alien sent to Earth to spy on humanity who ends up empathizing with us a little too much... and pays the price, when his race declare him a traitor for daring to defend Earth. Interstellar politics and a superstrong flying guy who likes to punch things, this is Superman updated for the cynical age. I'm saying, give it to Paul Greengrass and see what happens.
Must Read: Essential Captain Marvel volume 1.