There has been a never ending conflict between DC and Marvel when it comes to comics, etc. Although the tension between these to titans of entertainment when Marvel's Avengers released and introduced the concept of a Shared Cinematic Universe was created. DC had released many entertaining movies like Nolan's Dark Knight Trilogy, and Bryan Singer's Superman Returns; but even though these two iconic Characters had been established on the big screen for some time, there was never an initiative to have a shared universe. With the Release of Man of Steel, Zack Snyder had plans of expanding the Dc Cinematic Universe to Compete with Marvel. To do this they must establish characters that feel familiar for the mainstream audience; this should not be hard since DC has the most iconic characters in comic book history. This is how they should handle both Cinematic and television universe starting with:
Arrow could become a prequel to the DC universe before Man of Steel and around season 3 or 4 they could be taking place simultaneously. This would allow the connect the events between MoS and MoS2, leading to the anticipated [Justice League](movie:401267). Since Arrow has already introduced characters like Deathstroke and Harley Quinn, it would be a good way to introduce Batman since there is also speculation of Nightwing appearing on the show. Also they could introduce John Stewart as an old partner of Diggles, this way his introduction to the DC Universe makes sense and has a more natural feel for his presence. Felicity could become the DcCU's Oracle, since she plays very much that on the show, as well as give her a bigger role or purpose, since she is always reminding Oliver that his is a hero no a vigilante, it would be nice to see the development of her character head in that direction. In this Universe with all Supermen, and Aliens, Oliver should have a similar view that the JLU Green Arrow, where he would help if necessary but he establishes that his place is in Starling City and not with the Justice League.
The Flash show would follow the same format as Arrow, speaking chronologically. This allows the audience to witness Barry Allen grow as a hero, preparing him for his confrontation heroes like Green Lantern, Nightwing, and Vibe. While introducing his Rouges gallery and of course Zoom; beginning the expansion of the Dc Universe.
3. Man of Steel 2
In the Sequel to MoS, the directors can establish a shared Dc Universe by introducing Bruce Wayne, who comes to investigate Superman but also to investigate what project Lex Corp has been investing a large amount of money into. Lex having a hero complex wishes to destroy Superman's image so he creates a Kryptonian Cyborg using body parts of a similar Kryptonian that isn't from the first movie but Zor-El Superman's Uncle. Although, Kryptonians are almost invincible on earth and to alter their body would be impossible. As Luthor's creation is causing mayhem within the city, Batman will think that it is Superman and Confront him leaving him severely injured turning into the final form of Cyborg Superman with half of his face melted off, but leaves before Batman notices. This leads to the highly anticipated [Batman vs. Superman](movie:711870) confrontation, Batman repeats the same attack that defeated Cyborg Superman on Clark, only this time the attack was effective since this was the real Superman. Superman subdues Batman and tries to convince Batman that he is not a threat, Batman gives up knowing he couldn't defeat. When Cyborg Superman attacks both of them, and they defeat the threat. Between the movie we would see a Wonder Woman to tease the audience as well as Nightwing investigating on strange "abductions". As the movie is coming to an end we see Lex Luthor speaking to an interface hinted to be braniac explaining where he got the technology to alter a Kryptonian , leading perfectly to a Justice League movie.
4 Justice League
After MoS we know Braniac is on his way about to bottle up not only Metropolis, but the whole world. This also included Gotham, Central City, Dakota, Starling City, as well as Paradise Island. Braniac would be a perfect adversary for the [Justice League](movie:401267) first fight as a team. Batman and Nightwing talking about the abductions, and that a friend had been abducted; talking about Black Canary (a nice reference to Arrow). As a nice tease he sends Starro to conquer the mind of the Last Son of Krypton, as we see another figure escape the figure along with the creature, Martian Manhunter! The Creature comes to earth Martian Manhunter try's to stop him accompanied by [Aquaman](movie:264237) , [Wonder Woman](movie:45787) and [The Flash](movie:15273) . Once defeated Braniac decides to take matters in his own hands and lands on earth to encounter Superman, Batman, and Cyborg, and later being joined by the rest of the JL; the team restores all the cities to their original location. After this the team rescues the hostages like Black Cannery and a group of group of runaways, each have been genetically altered. Cannery now has the ability of super-sonic shriek. The last Shot of the movies show how everything is back to normal than we see kid skate through the screen and jumps over a puddle, and we see some static cutting to the credits.Ending Phase 1