From a source familiar with the matter, I can report that the deal Sony finally rejected was NOT a Marvel trilogy of movies that Sony would have control over. Instead, it was a co-production deal where Marvel and Sony would split future Spider-Man film costs 60/40 (Marvel paying the larger part) while MARVEL retained control of the Spider-Man creative property with the potential to have him cross-over into Marvels Phase films, like an appearance in Captain America: Civil War.
Now, what initially looked like a retaliation attack for The Interview from North Korea might drastically alter what happens to Spider-Man. All the players on the Sony side are now in hot water regarding their very public leaking of films and data at the hands of hackers. Sonys parent company in Japan are apparently very angry at how this is all playing out. Ive heard that the atmosphere is that anyone could end up getting fired over this if it begins to cause serious financial damage.
What Im hearing from my little birds is that Sony, the parent company, views Sony Picturess handling of the Spider-Man property as disappointing. Sony wants to be all about quality films (actual one-word quote, not air quotes), and the Amazing Spider-Man movies have not been that, nor have the rumors of future films in the franchise. Sony Japan thinks the Marvel deal for Spider-Man is still on the table and they want to renegotiate as a return to quality, the 60/40 split is can be negotiated and Sony Entertainments October hard-line stance of wanting creative control is now mostly moot in the eyes of the higher-ups.
http://www.latino-review.com/news/marvelous-da7e-75-the-spider-manmarvel-deal-is-very-much-alive