Not a bad slate
Here's mine (not counting the Joker and Reevesverse Batman in this):
Superman: Man of Tomorrow
A reboot film inspired by stories like Morrison's Action Comics run,
American Alien and
Superman Smashes the Klan. Starts with a 20-something Clark Kent in his first year as Superman, a 'Champion of the Oppressed'. He's used to being a street-level crusader with limited powers. But a government task-force, which includes renowned astrophysicist Lex Luthor, has been secretly studying his powers and alien nature and developing a counter-measure against him - Metallo. And then Brainiac comes calling. The movie is basically about Clark being forced to reckon with his alien heritage, unlock his full potential, save the earth and earn the world's trust and support. J'onn J'onnz would cameo briefly, and there would be easter eggs hinting that Batman is already out there.
Green Lantern Corps
Focuses on retired US Marine John Stewart and his induction into the Green Lantern Corps after the mysterious disappearance of the previous Green Lantern, Hal Jordan. Will introduce the full Corps, including Kilowog, Katma Tui, Mogo, Tomar Re and other iconic alien GL's. Sinestro would be the primary antagonist. This would be a strong introduction to the cosmic side of the DCU, with characters like Lobo, Adam Strange, Shayera Hol etc. showing up.
Green Arrow & Black Canary
Inspired (at least tonally) by Mike Grell's work and
Green Arrow Year One. Oliver Queen AKA Green Arrows meets Dinah Lance AKA Black Canary. Sparks fly, as do arrows and canary cries! The two overcome their initial friction to team up and take down a drugs-trafficking operation involving China White, a woman with whom Oliver tangled during his time stranded on an island. CIA operative Edward Fyers is also involved. There would be hints that Dinah is not the first Black Canary, and that she has previously teamed up with the mysterious Batman, who Oliver thinks is an urban legend.
Hawkgirl
Shayera Hol comes to earth on a mission to track down the fugitive Thanagarian terrorist Byth. She assumes the cover identity of St. Roch university student Kendra Saunders, and meets Carter Hall, an archeologist and government contractor who specializes in investigating alien artifacts left behind on earth in the distant past. Carter has recently uncovered the remains of a Thanagarian ship that had crashed in Ancient Egypt and Byth is intent on using some of that ancient technology, including a device called the Absorbascon, to conquer earth. During her hunt for Byth, Hawkgirl encounters another shapeshifter, J'onn J'onnz, who also aids her. The film ends with Carter getting visions of meeting Thanagarians in Ancient Egypt after being exposed to the Absorbascon, and looking at the armor of one of the Ancient Thanagarians...
The Flash: Fastest Man Alive
College student Wally West's origin story as the Flash, in a world where his recently missing presumed dead uncle, Barry Allen, seemingly never was the Flash. As Wally explores being the Fastest Man Alive, he soon finds himself plagued by a mysterious yellow speedster, whom he eventually discovers is Eobard Thawne - the arch-nemesis of Barry Allen's Flash who managed to alter the timeline to erase Barry's career as the Flash from history
and made him disappear. But the Speed Force ended up filling the vacuum by choosing Wally as the Flash anyway (several years earlier than it originally would have) and Wally must now fight a threat that even Barry wasn't able to defeat. There are hints at the end that Barry is still alive but trapped somewhere. Superman makes a cameo appearance.
Justice League: New World Order
Inspired by Morrison's
New World Order and Cooke's
New Frontier. J'onn J'onzz is the de-facto protagonist and we learn about the decades he's spent on earth, as the sole surviving Green Martian who escaped the massacre of his race by the White Martians on Mars. J'onn has uncovered evidence of a government conspiracy against the newly-emerging superheroes and realizes that the White Martians are on earth as sleeper agents, attempting to neutralize earth's best defence against them. J'onn must now bring together some of earth's superheroes, including Superman, Flash, Green Arrow, Black Canary and Hawkgirl, in order to fight this threat. Wonder Woman shows up midway through the film, having come to Man's World to help stop the alien invasion (with hints that she's been here before). There's a cameo at one point late in the film of a batarang hitting a white martian and a bat-shaped shadow in an alleyway...potentially cameos of other superheroes as well, as the age of heroes is now fully underway.
There ends my Phase 1.