2. Batman vs Superman will make a ton of money, but still disappoint expectations.
BvS will basically be a scaled up MoS: somewhat better reviews ( high 60s, probably ), somewhat better gross ( breaking a billion, or coming near enough ). However, WB is expecting bigger things from it, Avengers numbers. Not reaching that level of either critical or box office success will leave them in an awkward position- none of the worries they have about their own path will actually be resolved, but its not actually a failure, so they can't really justify changing course. The result is that they forge onward, but with the same lack of confidence hanging over WW and JL that was hanging over BvS. This raises the stakes for WW especially: without the confidence boost of a definite success on their hands, I suspect they will be a lot more unforgiving of any stumble by their "risky" female-led movie.
Fan reaction, meanwhile, will be split between declaring it the Best Movie Ever ( and you shall burn if you disagree ), and looking for a scapegoat in the movie for why it sucked when it shoudn't have. Odds on bet for that: Jesse Eisenberg's Lex Luthor.