My restart idea is a origin flick featuring Superman v. Braniac, with Lex and LexCorp operating in the background! You would have to be careful with who you cast as Lex though. He wouldn't have the biggest role in the first flick, maybe announce his candidacy for President.
My "established" Superman idea, that I had before McG, Ratner, and Singer came on board was to have our hero face off against President Lex Luthor and Metallo. I would opened the movie with Kal-El's ship coming to Earth through the stars, with Jor-El as a narrator, not just for the opening scene in space, but the movie in general, acting as sort of a guardian angel, watching over his son. The ship would have crashed by the red truck, the Kents take in Clark and wonder what will become of there son, and I would have cut to a red boot, about to save the day. Basically, President Luthor would, through an already established LexCorp and a well paid set up Morgan Edge, be funding and supplying terrorist groups to attack the United States, so Lex can in turn create his army of Metallo's to destory his enemies and strike fear in to the heart of the world, because my Lex would have been very ethno-centric and hateful of other cultures, thinking he is doing the right thing, and in the process is hurting Americans and other nations. President Luthor also would have been very outspoken about how America could not trust other nations. I had just finished reading Mein Kempf when I came up with this idea, and I drew alot of inspirations from Hitler for my Lex Luthor. I wanted to make Lex Luthor the sickest, darkest to ever grace the screen, up against the greatest hero of all time. Of course there would already be a prototype Metallo, made to wipe out Superman and anyone who might try to rat him out on his plan. I wrote a scene that pays homage to the Terminator, where Metallo destroys a group of terrorists who are on to Lex's plan. Of course, Superman, and Lois, would be the only one's who see what is happening and believe Lex is setting this all up, but after Superman cannot prove it, he retreats to the farm after learning that MARTHA KENT has been stricken with cancer, and has a short time to live. Martha has never been the Kent to die before, and I wanted to explore that. It is here I would show flashback scene's to Clark's youth, intertwined with him not only grieving for his mother, but wondering if his life's purpose was a waste, seeing that Lex was now President and brainwashing people. Clark would question himself, his faith in humanity, and try to embrace his own immortality in the face of his mothers death, realizing he will always someday be alone, which, in my story, would be what keeps him away from Lois. Kal-El would also wonder who he really is, Superman or Clark Kent, and I would turn that debate into a storyline. Of course, Superman would have an epiphany and remember that he is what stands between good and evil, that the fight will never stop and it is up to him to protect the innocent, helped by his mother's memory and the flashbacks to his childhood were he discovered who he wanted to be, and would reinforce the ideals of the character for new viewers without being an origin story. Lois, on the other hand, finds herself missing Clark Kent and knowing that she loves him more than a friend, and after being tipped of by one Lana Lang, goes to the farm for a dramatic confrontation. Followed by one of Lex's goons, Metallo attacks the Kent farm and basically destroys everything, and gets away due to Superman needing to save his dad and Lois, and this also leads to a tender moment with the three of them rebuilding the farm at the end of the film.
After talking with Dr. Hamiliton, who has worked on the Metallo project in it's infant stages and quit, Superman knows he can prove what Lex's is doing by removing a memory chip from Metallo, although he might risk killing it/him. This creates a moral dilemma, but I had Superman, after a brutal fight in downtown Metropolis, remove the chip while not "killing" Metallo, show up in Washington, D.C., to show the man Lex really is before Congress and the Vice President, who I would show to be a good, moral man who often disagree's with Lex and was only picked to be the running mate because of his popularity, and after proven to be the bastard that he is, Lex would attempt to ecscape via his henchman from LexCorp, and after Superman tried to stop him, Lex would have the Kryptonite ring, and brutally beat the wholy hell out of Superman, who is both weakened and not willing to strike a fatal blow in any way, shape, or form. Lois would save Superman, however, with a gun shot to the back of Lex Luthor, doing what Superman could not do and returning the favor of being saved so many times.
I really wanted to create a dark, mean world with Superman being the light, the silver lining of hope. Again, I wanted to create the darkest villian of all time. And I wanted to present the Man of Steel overcoming his own "human" doubts and feelings to reign supreme as the champion of all heroes. The Martha Kent angle would have represented his inability to save everyone because everyone dies, but that shouldn't stop you from making the world a better place.
I toyed with the idea of Lex discovering Supermans identity of Clark Kent, and Lex actually, via a will, giving LexCorp to Clark for the sequel, which would have been Darkseid, because if Lex failed in his plan to make the world a better place with his methods, he would know Superman was right all along. I never made a decision.
I'm still working on my origin restart, like I said, it's Superman vs. Braniac with Lex operating in the background, while being a straightforward restart. I'll get back when I have more! A origin film was not my first choice....