0
It's also worth noting that some of the films that did make more only made a little more, despite making it several years later. Inflation-adjusted, they didn't actually do as well.
Anyway, all the arguments for TDKR are about why it'll make a lot of money (which I think we all acknowledge) and why it might make the kind of money The Avengers is basically already making. Hype is of marginal value here, I think, for three reasons:
1) It's not really measurable.
2) Fervency and dollars aren't the same thing. I was more excited about TDKR than I was The Avengers, but I'll probably end up spending the same amount of money (two tickets' worth) on both.
3) We're talking about splitting hairs amongst historic blockbusters. We already know that one of these two films is going to be a massive hit, a worldwide phenomena that helps reshape the industry and change its financial fortunes for the calendar year...and still gross less than the other. This kinda throws most of the arguments for either out the window.