I'm an optimistic guy by nature, so despite the many hurdles in its way I'm pretty sure that at some point in the future we'll get to see the fabled 'Snyder cut' of Justice League. Granted, we have contend with the fact that Snyder's version apparently only exists as a very rough edit with unfinished CGI and a temp score, and it's difficult to imagine Warner Bros executives being willing to throw yet more money at the film to finish it (chances are they're busy pretending it didn't happen at all). Still, we eventually got to see the Richard Donner cut of Superman II - albeit 26 years after the film's theatrical release. So, by that metric, we should expect the Snyder cut no later than 2043.