It seems as though Marvel has already come to a decision concerning Spider-Man showing up in the next Captain America movie.
Badass Digest reported on Tuesday that Marvel has moved on from their plans to include Spider-Man in Captain America: Civil War, but that doesn't rule out the possibility of a possible cameo for future movies.
According to sources, there's always the possibility that Spider-Man gets himself a cameo in the film, some sort of post-credits sting. The process on these films is fluid, and Marvel relies heavily on additional shooting, so nothing is in stone until the film is in theaters. But anyone hoping that the word of Sony and Marvel negotiating could mean Peter Parker having a major role in Civil War should put that hope away.
The site added that Winter Soldier will be central to the story, and that there have been hints planted through the Marvel movies as to how that works. When asked if the fact that Winter Soldier killed Tony Stark's parents could have anything to do with it, the source noted that it was an interesting line of thought.
That's not quite a confirmation, but it makes an awful lot of sense that a conflict between Tony Stark and Steve Rogers starts when Tony finds out Steve's best friend killed his mom and dad.
It seems like the battle between Steve Rogers and Tony Stark will begin with this anecdote and without any involvement of Spider-Man just yet. But as the site pointed out, never say never.
Captain America: Civil War comes out on May 6, 2016.