I would have said Universal.
I think he is trying to say WB is unlucky, but they aren't so idk
Unless I'm

, didn't WB have the #1 movie at the 2014 North American box office? What bad luck does the #1 movie studio have? And I really want to know how Warcraft can be a sleeper hit.
Not sure if you are serious or taking the comment too literally.
Having the biggest movie ever doesn't disqualify one from also having bad luck from time to time(just ask fox). However that wasn't some statement about the WB reality but rather a comment made in jest about a somewhat similar situation that went down the last time with mos pertaining release schedules and the luck there in.
Where does it come from? Well last time they released a superman movie it was up against massively underestimated and over performing competition. World War Z in particular was written off at the top of that year due to the highly publicized rewrites and reshoots and production woes and overhuals. WB even moved their movie's release 2 weeks away from anything that was considered their competition and right into one of the worst second weekend positions in history for a big film.
The long and short of it is that of irony.
The point isn't to suggest BvS won't perform well, I'm sure it will be the biggest that year save for one or two other possible killer apps, but rather to point out how these very same conversations took place around MOS about
competition and "With WB's luck(or rather bad luck)" it would be ironic if the competition again proved under estimated. To this very day I have to indulge people in their arguments about MOS's 65% drop in it's second weekend and one of the points always made is that the competition was supposed to do poorly?
Sorry but I'm not counting anything out.
As for why WoW 'could' be big, that comes down to luck and quality. Guardians and Ninja turtles weren't supposed to do all that much last year and somehow they did. Point being anything can happened, surely this needs no explanation. Any film can drop and be a big massive imagination capturing hit, especially something with game trailers like that one is based on. To write anything off in this day and age is beyond stupid imo. For it's not some prediction but rather a statement as to possibilities. Does it have to be made by james cameron before the possibility is given any weight? Or perhaps it could have the jackson 5 playing at the end there and work that angle.. The statement that WoW could be next years sleeper hit needs no explanation for it's a clear possibility, especially considering how many of you are demonstrating the first parameter 'sleeping on it'. The idea that WB has run into bad release schedule luck with this brand is kinda based on...the very last time it happened.
That being said, it's hardly a prediction but rather a statement pointing to irony, not simply in the situation the movie itself faces but also that of the way the fans are talking.