In this interview, Marvel's Kevin Feige reveals certain aspects about the upcoming MCU set Spider-Man film. They are not doing an origin story.
“In Spider-Man’s very specific case, where there have been two retellings of that origin in the last whatever it’s been – [thirteen] years – for us we are going to take it for granted that people know that, and the specifics".
“There is a young kid [already] running around New York City in a homemade version of the Spider-Man costume in the MCU, you just don’t know it yet,“ he said, laughing.
There are other quotes at the link. The Ultimate Spider-Man comics are distinctly mentioned as doing things they want to explore in the new film. (Nick Fury cameo?)
Feige also mentioned that they've already designed Peter's costume. And it will be different from what has come before. (Webpits?)
But the most interesting thing was that Marvel was working on this deal when they made their announcements about Phase 3.
“Spider-Man we knew about when we were doing that announcement in October. It could have gone either way, and Marvel as you well know doesn’t announce announce anything officially until it’s set in stone. So we went forward with that Plan A in October, with the Plan B being, if it were to happen with Sony, how it would all shift,“ Feige told us, adding, “We’ve been thinking about it as long as we’ve been thinking about Phase Three.”