Well it seems Robert Downey Jr. may have had his dates wrong. So far there is no news today that Marvel will be announcing anything. It seems the big announcement was more than likely the new trailer which debuted yesterday. It also could have been the announcement that we would be getting the Ultra Marvel Marathon, which is a 27 hour movie marathon leading up to Avengers: Age of Ultron. We will keep our ears to the ground as they day goes on but at this point it seems no new info will emerge today.
It seems Adri Cowan, Social Media Manager of Marvel is confirming this.