I don't see it making more than Spider-Man or The Dark Knight Rises. It won't happen.
It would be a surprise if it did, but as a long shot I could see it's numbers coming close to SM1 if the word of mouth is good.. and assuming the general audience gives it a chance (which I think they will).
Excluding Dunst, SM1 had a pretty damn impressive cast. Maguire, Dafoe, Simmons, Robertson, Harris and Franco were and are all very well-respected actors. I'd say Dafoe, Simmons and Robertson are great ones. I think the Spidey character honestly hurt Maguire as most people ignore his impressive work prior to the film (The Ice Storm, Cider House Rules, Ride with the Devil, Pleasantville, Wonder Boys and Seabiscuit). I hope the same fate does not happen to Andrew Garfield who has had an equally impressive lead-up before trying to go Hollywood franchise on his career. Time will tell.