My actualy layout for a movie franchise goes like this....
Superman: An origin movie focusing on the character of Clark Kent, why he becomes Superman, and how the debut of Superman changes the world. Either Eradicator or the kryptonian Braniac should serve as the films ONLY villian, as both chracters tie in nicely with Superman's heritage and could be used to further the origin storyline. Lex Luthor can be mentioned, and LexCorp can be seen, but thats it, because believe me, it will do the new franchise a world of good not to give Luthor a rest and not have him as the threat right off the bat. This also allows a nice build up to Lex Luthor appearing in the sequel. And I know that there are some fanboys who feel that Superman doesn't need an origin, that a 31 year old movie and a half assed WB/CW television show is good enough. Well, I let everyone in on a little secret, thats the wrong line of thinking. Superman needs re-introduced to the 21st century, and the poop stain that was Superman Returns needs bleached away. Origin flick, a combination of Birthright/For All Seasons/TAS would be a good route, Braniac or Eradicator as the villian, a cast of quality actors, were in business folks.
Superman: The Man of Steel - Superman vs. President Alexander "Lex" Luthor, the former chairman, CEO, and founder of LexCorp, the first third party President in United States history. Luthor has everyone fooled, except for Superman and Lois. Superman is a worldwide celebrity at this point, billboards, little kids in t-shirts, coffee mugs, invited to give speeches at press conferences, you name it. The two most popular men in the world, Superman and President Luthor. As it turns out, Lex Luthor is secretly funding and arming terrorist cells through LexCorp, so that in turn Luthor can have LexCorp continue making more profit from weapon engineering for the United States military, and Lex can recieve the go ahead to wipe out any and all threats to the United States. In this story, Lex would be a fierce nationalist who is a borderline Adolf Hitler, wanting the United States to become an empire and rule the world, because, in Luthors mind, thats whats best. In his own way, Lex Luthor wants to save the world, and needs to conquer it for that to happen. And his weapon of choice for this task, to lead his army, is Metallo/John Corben. I already have a scene in my head of Metallo walking through a bunker of terrorists that have discovered there backers true identity and are preparing blackmail, Metallo destroying everything and everyone in his path, ala Arnold shooting up the police station in the original Terminator. I would make Metallo as scary as I possibly could. Jason Isaacs as Lex and Alexander Skarsgård as Metallo. Superman is also drawn away from his duties when Martha Kent falls ill. Superman will show anger at Luthor blinding everyone, but nothing worth making him run away over, yet. But Clark would return to Smallville to help care for his mother, who would pass away during the film. Jonathan is always the one to die, I'd like to see Clark tackle his mothers death for once. I'd have a few flashbacks of the two together during Clark's childhood. Also during this time Lois would discover Luthors plan, placing her on his hit list, and with a little help from Lana Lang, would discover Superman's true identity. From there, obviously it's up to Superman to stop Lex Luthor before Luthor has the Vice President assasinated, giving him the true ammunition he needs to go forth with his plans. I figure the Vice president character would be a very popular young politician Lex lured away from one of the big parties for popularity points and for assasination sympathy.
Superman: Doomsday - The title says it all. The Death of Superman arc NEEDS to be shown on film. I would stretch this out over two films. This film would basically be a romantic action flick. The romance between Clark and Lois is a full go, there in love, there together, and there trying to build a life and be the couple they know they can be. And then Doomsday arrives and hell is unleashed. The first thing I'd have Doomsday do is destroy the FOS. I'd also begin introducing DC heroes who basically have no hope of getting a solo flick, like Martian Manhunter and Aquaman, yes, I said Aquaman. MM arrives to warn Superman about Doomsday, and Aquaman appears because Doomsday causes problems for Atlantis. Doomsday beats the hell out of the combined three, destroying city after city. Finally, Superman and Doomsday engage in a battle to the death, heroically sacrificing his own life and dying in the arms of Lois Lane. I'd end the film with Superman's funeral, which leads us into....
Superman: Apokolips - I would do something comic book fanboys hate more often than not, and redo a little history. It turns out that it was a war with Darkseid and Apokolips that lead to the planetary shift resulting in Kryptons destruction, and Doomsday was a Kryptonian weapon of mass destruction that Darkseid had taken control of. Darkseid is now coming for Earth and Superman is resurrected for the sole purpose of stopping Darkseid. I'm still working on the details, but I'd have Superman return with temporary pre-crisis power levels to combat Darkseid. I'd also have Lex Luthor return in this film. I would have Lex found insane following the events of MOS, only to be given a clean bill of mental health in this film. I'd have Lex HELP Superman in some way during this film, because remember, Luthor wants to the savior of humanity. Also, many years prior to becoming President, Lex would have stored quite a large sum of cash under a phantom name, enough to buy controlling interest in LexCorp and take it back over, setting the stage for the fifth and sixth films.
Superman: The Man of Tomorrow - Superman vs. Luthor, one last time. Sketchy details, but I'd have Bizzaro or Lobo as the muscle villian, probably Bizzaro. I think if taken seriously and written well enough, a Bizzaro story could actually have a deep impact. I'd have Luthor take a bit of blood or some other tissue from Superman during his fight with Darkseid, while he had pre-crisis level powers, and use that to create Bizzaro and basically making Bizzaro more powerful than Superman, who has returned to his post-crisis level of strength. This is also when Superman would say goodbye to Lois and tell her to live a normal life with a normal man, that he couldn't give her a family and someone to grow old with.
Superman: Kingdom Come/Man of Forever/Day of Reckoning/etc - Obviously, something along the lines of Kingdom Come or my idea. Set in the future, Superman exiles himself after losing faith, all his loved one's have passed except maybe Jimmy. Superman is forced to return and save Earth from the forces of hell, demons like Neron and Etrigan popping up everywhere, meets some new friends and new love interest. You get the idea.