Has anyone heard anything? A year of release would even be a step forward.

I don't think anyone really knows. Many believe that Fallout 4 will be released on next-gen though, me included. In my opinionn it would be foolish to create another Fallout game with the restrictions of the current-gen consoles.

I'm really looking forward to some information myself regarding Fallout 4.

Nope.

Fallout 4 doesn't even exist.