It's a tough job. But somebody's gotta do it. In this article I'm going to give you what I think should be the layout for the DCCU.
Man of Steel (2013)
Villain: General Zod
Superhero cameos: None
Kicked off the DCCU in a great and epic way. Amazing depiction of the Last Son of Krypton with plenty of hints of future DC characters.
Superman/Batman: Public Enemies (July 2015)
Villain: Lex Luthor
Superhero Cameos: Cyborg. Victor Stone/Cyborg was a football player and they just shot scenes of a football game. Am I reaching? Probably. Still would be a great way to introduce the character.
I chose the Public Enemies route because I feel a true World's Finest would have to have a teamup with Lex Luthor and The Joker, which would be to much in one movie acting as only the 2nd installment in Phase 1. This movie is a perfect outlet to further develop Superman, introduce the new Batman without his own movie and help pave a lane for other heroes. Keep it a Superman sequel/story have him against Lex Luthor and have Batman be sort of what Harry Osborn was like in Spider Man 3 (but better of course).
Wonder Woman (Late 2015)
Superhero cameos: Aquaman (either an easter egg or an actual post-credit appearance) can make for a romance along the line.
This movie needs to be done. She's 1/3 of the "Big 3" of Justice League and having her own franchise can be very beneficial to the character. This will be an origin story for the character. I'm standing by my Jamie Alexander choice for WW and the villain of this movie will be Cheetah, played by maybe a Angelina Jolie or a Jessica Chastain? My only wish for this movie except for it to be a sucess..but to 'Avatar' the crap out of it. If you've seen James Cameron's Avatar, you'll know what I mean.
The Flash (2016)
Villain: Gorilla Grodd
Superhero cameos: Green Lantern Hal Jordan or John Stewart (He can play the "I'm starting a team" role)
I'm just eager to see how Flash's speed ability is going to look in another adaptation other than the cartoons. Ryan Gosling could work as the Flash but any actor from Chris Pine to Garrett Hedlund or maybe an unknown actor can work here. This movie will be the origin story of the Flash character and Gorilla Grodd would be the perfect opening villain. Just hope the filmmakers don't make it look like Planet of the Apes.
Justice League (2017)
Villain: White Martians/Ma'alefa'ak
Superhero Cameos: Introduce Martian Manhunter & Aquaman. Darkseid [Post-credits only]
This photo alone gets me pumped for Justice League! This is where all the previous movies come together in Phase 1 along with the cameos that had happened in those movies as well. Martian Manhunter will be key in this film as he is responsible for the main villain(s).
We will be already familiarized with Green Lantern through the Flash movie and Cyborg is hinted at in Superman/Batman. Aquaman can be in this movie through the Wonder Woman pipeline and can serve as a "I'm not down with this Justice League thing" until the villains attack his home turf (or water), then he's all "Alright might as well join"
That's it for Phase 1!! Let me know what you think. Phase 2 is coming soon!