Okay, so I started school this week and I am taking Intro to Film. My professor happens to be VERY well connected to Hollywood and has lots of good friends that work within it. According to her, one of her best friends was supposed to work on this reboot but was angry when they cut the budget down dramatically. He didn't want to risk making a disgrace of a movie so he got out...
The last thing he heard, though, was that Zac Efron was going to be cast as Peter Parker.
I am not saying that he is 100% in, but that's at least what she said.