That does make sense actually, they're releasing a lot of games: Dishonoured 2, Prey (does anyone know anything about that by the way?) and Fallout 4 was last year. They'll need something so next year, but it could also be DLC for the games they're releasing.
Meh, I'm probably being too sceptical, ES 6 has to be released eventually. And I'm also super pumped for Skyrim Remastered!