Could 'Batman Vs Superman' be split into two films?

"Batman v Superman" is rumoured to be split into two films.

The rumour started after a screengrab of what appeared to be the trailer of "Batman v Superman: Dawn of Justice" emerged via Ain't It Cool News site on Jan 9, showing two titles and release dates.

According to the image, the first part is called “Batman v Superman: Enter the Knight” and will be released on Oct 23, 2015.

The second part, named “Dawn of Justice”, is set to hit theatres March 26, 2016. Click the Movie button below for more info:
Batman v Superman: Dawn of Justice