As much as I want him to be in the film we cannot truly say that he is confirmed beyond a reasonable doubt.
Now in my opinion, when there is enough evidence to point in a certain direction we must consider the grand possibility which in this case points towards the likelihood that he will indeed appear.
However, the wiki's page is to provide information based on official sources not claims.
I do believe that Kevin Feige stated that they intend to keep as many surprises for the film itself which is why the trailer felt very secretive according to many, and labelled as a "teaser". So if Charlie Cox does appear I expect that they will want to keep it under wraps and not have it be unveiled before the film's release.
I pray that he is in the film, and I do believe the claims, but we should always keep an open mind.