I'm personally hoping they keep her around, in part because I like Emma Stone, but I'd also like them to stay somewhat true to the comics if they're going to kill her. Let them (re)introduce Osborn and Oscorp in this movie, make him the Green Goblin in the next one and have Gwen Stacy die. I think it'd have more of an impact if you build the relationship over two movies as well. Let people get attached then pull the rug out from under them when her neck snaps. It's a pretty defining moment in Spider-Man's life so they should either do it right or not even bother.

I'm not opposed to her dying in this one though if it's handled well.