Last year, Marvel and Sony announced a blockbuster deal which had the movie rights for SPIDER-MAN to be "shared" between Sony and Marvel. This was being done because Sony released two sub-par Spidey films in an attempt to reboot the Webslinger, but also so he could be brought into the Marvel Cinematic Universe. However, this deal is definitely not as perfect as one would hope it to be and the studios are still negotiating.
During a Q&A with CAPTAIN AMERICA: CIVIL WAR directors Anthony and Joe Russo in L.A. last week — via Collider and transcribed by SlashFilm — the brothers talked about why the MCU version of Spider-Man has not yet been revealed to fans and why it's been such a secretive process.
"Part of the reasons of what was so secretive was that the deals were always lagging slightly behind how we were using the character. We were always in danger of upsetting the deal — there were still sensitive issues going on between the two studios that they needed to agree on. When we were casting Tom Holland, when we were screen-testing him for the movie there was a whole very involved kind of process that was under the radar and secretive, because of the fact that it was still a sensitive business issue.
"...The reason why I preface that is we’re still kind of in 'deal zone.' The reason why we still won’t talk about [the costume] is that Marvel and Sony still have to work out what uses they have for the character, on a promotional level, on a commercial level. There’s still complications as far as that goes that involves business deals."
This deal was brokered a year ago, but negotiations are still ongoing since this is a highly unique pairing between studios who are usually competing against each other. This is why you haven't seen how Spider-Man will look in the MCU. Soon though... CAPTAIN AMERICA: CIVIL WAR does releases on May 6 but hopefully the first look will come sooner than that.
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