http://www.ign.com/articles/2013/06/...-release-dates
Amazing Spiderman 2 is still in production for release in 2014, and Sony has already greenlit Amazing Spiderman 3 and 4....which means there's a new movie every 2 years.
So already this Spiderman movie universe will go on longer than the the first one. I hope they can do interesting things this time around if they know they're making 4 movies. Sony is clearly doing everything they can to avoid returning the rights of the movie franchise back to Marvel.