Today in vague, unsubstantiated rumour: Cyberpunk 2077 might be arriving before the end of 2016. This rather large 'might' comes courtesy of Gamereactor Germany, which cites a source close to CD Projekt RED.
I'd be surprised to see it so soon given CD Projekt's reticence to so much as mutter about Cyberpunk until The Witcher 3 is put to bed. Blood and Wine, the second expansion, won't appear until early next year, although large numbers of staff have begun switching projects. Still, perhaps they've learned that too much hype time can be more hassle than it's worth—Cyberpunk 2077 was announced in 2012, you'll remember. I wouldn't blame them for wanting to pull a Bethesda and keep their progress hidden ahead of a big reveal.
I'll let you know should there be confirmation one way or the other, but CD Projekt have never been afraid to leave us guessing.
Thanks go to the folk at Destructoid, whose German is clearly superior.