Even if this got fantastic reviews or fan reaction like the first I don't think it would get that much increase. That new car ya bought in 2012 ain't so new anymore in 2015 ya know? If they wanted to hit 2 bil (which is near impossible) I really think they needed to have a new novelity to boost it. Maybe Spidey could work, maybe a better villain or maybe X-Men. I don't know. But something. Good reviews and happy fans is not enough to have that big of an increase when numbers are this high imo. All my pov of course. This is all new territory so it's difficult to say how these crossovers should play.
Everyone I know loves the film, but that's hardly proof of anything. Only time I see negative stuff is fans onlin tbh. While there are def very worthy issues for people to have with the film, the fan psyche nowadyas is so odd from more then a few that it's difficult to tell stuff in a general sense. All I know is that from my perspective it was well received from audiences and made a ****load of cash that almost no other frnachise can hit. It will be interesting in the next few years how the new additions play and how other stuiods expanded universe effects superhero films in general.