Last we heard, Half-Life 3 was potentially on the permanent back burner. Whether we ever see the series again seems highly uncertain right now, which means that the internet will be able to keep doing their 'Half-Life 3 Confirmed' schtick for the foreseeable future.
Well, Uncharted 4 and The Last of Us director Neil Druckmann has offered to take the franchise off Valve's hands. In a tweet, Druckmann said developer Naughty Dog are happy to take Valve's flagship series if it's going:
Due to the public nature of the proposal, this was obviously said in jest. But hey, who knows? Maybe a joke gets a phone call going and a phone call sets up a meeting and so on and so forth. I mean, I'd eat my hat if Naughty Dog ever took on Half-Life 3, but it's fun to dream none the less.