Can this be the "Halo 4"?

When the Halo 4 rumor was going around I thought it wasn't true and I still don't, but at the 2008 Tokyo Game Show Halo 3 Recon, aka Halo 3 ODST, was announced. Before that me and I imagine many other Halo gamers went on bungie.net and found some kind of alert saying, "Please stay calm." Then one day when I started playing Halo 3 and a message came up talking about a trailer for some Halo thing. So I watched it. It was so mysterious. About a month later I heard about Halo ODST. Please comment your side of the story.