Still a good idea to manage expectations. 175mil in March when the previous record is 152mil isn't impossible but it's not very likely.
It's going to smash that record. It honestly baffles me how people think this movie isn't going to be huge. Granted, it's not the Justice League, and it doesn't have the novelty factor of several superheroes in one movie like Avengers for the first time, but that hardly matters when Batman is there. I'm sure JL will go past two billion in 2017, but this movie will get close.
People should have learned from the Avengers. Iron Man had grossed over $600 million, and people were thinking Avengers was going to do similar numbers when it was the first movie of its kind, and with ample time to itself. And neither the MCU or Iron Man were hugely popular at the time, which is why $1.5 billion surprised so many. Even then, a billion should've been expected just looking at it as Iron Man and friends.
WB is coming off two billion dollar movies with Batman, and while Man of Steel doesn't have the same recognition, it did well enough. Just the fact that it's Batman and Superman in a movie for the first time, and Batman's return guarantees it's going to be huge. When you add in how well superhero movies are generally doing with the public, and the international growth of grosses, this movie is going to going to settle around $1.5 billion worldwide at a minimum. Domestically, it'll do great too since Batman is the biggest domestic superhero.
This stuff should be pretty obvious to folks by now.