Following the less than well received Amazing Spider-Man movies, Sony wised up and turned to Marvel for help, which saw Tom Holland cast as the new Web Slinger, who will first appear in Captain America: Civil War followed by the standalone Spider-Man 2017 film.
Collider recently caught up with Marvel Studios president Kevin Feige who offers the Spider-Man movie is essentially Marvel's:
“We’re working very much [together]. It is a— I don’t know exactly what the credits will be, but it is a Sony Pictures production of a Marvel Studios film. The agreement was that it is very much a Sony Pictures movie. Amy Pascal is co-producing it with us and [Sony Chairman] Tom Rothman is leading the charge for Sony and that we are the creative producers. We are the ones hiring the actor, introducing him in this film, and then working right now on the script and soon to be shooting the actual Spidey film.”
Feige also talks about how they are not going to feature a Spider-Man origin story, but instead, have Spider-Man as always being a part of the MCU, just that he first shows up in Captain America: Civil War:
We spend a lot of time as we work on these movies saying ‘Don’t take it for granted that the audience saw the other the other movies or that the audience is as versed in the comic books as we are.’ We take great pains to give you everything you need to know within the context of whatever movie you’re actually watching. However, we did say, if it’s safe to assume anything, it’s safe to assume that everybody knows how Spider-Man became Spider-Man and what that backstory was. We’ve seen it a number of times now, it’s its own well-known mythology. So we said, let’s reveal that there’s been a Spider-Man in the MCU and we meet him, as you see, in [Civil War].”
Feige continues with mention they aren't really going to focus on Spider-Man's past, but want to look ahead to the future:
“There are events that made Peter who he was, and we’ll certainly allude to those events, but we’re much more focused on his future and how he continues to grow and have a steep learning curve after, certainly, the adventure he had in Civil War on how to be his own hero.”
Captain America: Civil War has a May 6, 2016 release; the new Spider-Man movie comes out July 7, 2017 directed by Jon Watts.