I don't think they will get that far.Give it a few years and we can have an Crisis of Infinite earths showdown where we see Henrys superman vs David superman.... and Henry wins
IMO Superhero movies are now dead, marvel is failing, so DC does not stand much of a chance, unless they make something fantastic also DC has not been good at them outside batman,
they keep jumping in to the deep end, not focusing on story or development.
plus most people are already not happy about Henry Cavill no longer being superman.
The cast so far for this has not been great choice.
if it going to end up like justice league or flash they may as well trash it and start with a good story for a movie people would watch, superman and batman is on repeat every few years.