1. It will be a path to the future
Legendary Pictures are known lately for their hugely successful marketing campaigns. Just look at The Dark Knight Trilogy, Pacific Rim, and The Hangover 3 to get an idea. Although, as previously mentioned, Man of Steel has a marketable cast, all the marketing so far has been focused on the character of Superman rather than the stars. But because of the sheer amount of marketing for the film, it is bound to be far more financially successful than Superman Returns.
Because Warner Bros. seems to be expecting the film to be a huge success, and if they are thinking of going down the Marvel route and creating a shared film universe, now is the time to do it.
Nolan’s Batman films were too realistic to introduce other superheroes or aliens etc. Bringing in such otherworldly concepts would have killed the strong sense of realism that they had created. And besides, before The Dark Knight Rises was released, it was confirmed that it would end the series and Christian Bale‘s incarnation of the character.
Green Lantern, despite desperately wanting to be the start of a new and successful franchise, wound up being a critical disaster, and only grossed $219 million worldwide on a $200 budget.
But Man of Steel  will be an ideal opportunity to create a DC shared film universe, leading to crossovers with other film, and eventually, Justice League. In fact, Snyder himself has recently confirmed that if Man of Steel is a success, he will most likely take the helm for the Justice League film. And with all it has going for it, how could it possibly fail?
