They shouldn't reboot Nolan's Batman. What they should do is bring it into the collective DC film verse where he gets cool upgrades and enhancements which he becomes their Ironman of sorts. He has the same things in the comics , yet they still have Batman proper as is.
Green Lantern will be the Hulk, where it will be rebooted , this time more seriously. But in the DC verse, he might as well be their Thor or atleast the space hald.
Wonder Woman. Give her own film or perhaps feature her prominently in Green Lantern.
Aquaman. He needs a major update, and why not make him the son of Poseidon and play on the Greek God mythos for a change, but he's like the pilot episode as well, being on the land and feeling a longing for the sea. Finds sea, and by defeating a dual enemy (Pollutinists working for Triton) he becomes the king of Atlantis. Zeus, and others gods come into play as well .
Cameos of Bruce Wayne/Batman and Flas are featured in this film.
Flash. A more tragic of them , his powers require a drug much like Utlimate Iron Man's Tony Stark with his skin condition and being blue to stabilize his body. Don't know villains or much so.... yeah.
Superman: This film came first, but here's the deal. Have cameos of a uniting force in each film .
I really don't agree with most of what you just said, however, I think Aquaman and Wonder Woman needs to model themselves after Thor. Both come from a fictional land of supernatural beings like Thor does, therefore creating Atlantis should be like doing Asgard, and same with the Amazonian forests.
While I do not agree with Aquaman being the son of Poseidon, his trident is, I believe, Poseidon's trident. A link to Wonder Woman. All I'm saying is that if they really wanna do a Justice League movie, they need to be finding the links between every character so as to play it out like Marvel has.
Notice that each and every Marvel Cinematic Universe film, they had pointed out to something that related to another character, which was why it was easy for us to accept The Avengers as a movie that fitted with everyone. Iron Man has SHIELD and Coulson, plus that small blooper with the Cap Shield in his room, then theres The Incredible Hulk with Tony's involvement at the post-credits, Iron Man 2 with Cap's Shield again and Black Widow and Howard Stark (who also jumped back to make a huge connection with Captain America: The First Avenger), then there's Thor who reference the Cosmic Cube along with Coulson and his talk with reference to Tony's armors as well as Erik Selvig's talk about once knowing a scientist that studied gamma radiation, then with Captain America the cube itself was the plot device, which referenced Asgard.
You see what I'm getting at? Marvel has built their universe that each villain could be treated as another heroes villains as well. Like how Doctor Doom could be Iron Man's foe in a fight or Cap can go up against Norman Osbourne. It's pretty connecting.
What DC has to do is to start connecting the dots. Best ones to start building on is Wonder Woman and Aquaman, and have them mention about forces in the universe that exists outside of the Earth (the Green Lantern Corp) and once the new Green Lantern movie comes, have that talk about extraterrestrial beings like Kryptonians and Martians. With a Flash movie, you really can't link him to anyone else but Green Lantern, so maybe a little visit from Hal or whichever Lantern they choose to go with. With Batman, possibly have him analyze different aspects of other heroes appearing on the news and have him think about possibilities of running into super powered foes, therefore basing tech off some heroes powers to deal with the villains he faces. Superman, just have the ring of Green Lantern cameo on him and then leave to go find another person instead. Have him fly to Gotham to talk to Bruce Wayne, his friend or something before he officially becomes Batman.
You could also have Superman go into public meetings and volunteering to meet with the King of Atlantis as a peace making offering in a scene, thus creating room for some screen time for both Aquaman and Superman to meet before an actual Justice League movie since Superman is a symbol of hope for America.
One other thing that should also be noted is that despite being called the Justice League of America, it shouldn't be concerned with Americans only. Aquaman's Alantean, Wonder Woman's Amazonian, J'onn is a Martian, Clark is Kryptonian, and Green Lantern serves as an intergalactic police officer of sorts. Which is why it shouldn't be called the Justice League of America, but simply the Justice League that's concerned with international, and possibly intergalactic affairs.
