The single most awaited game in history is about to release, titled "Cyberpunk 2077".
I don't think a lot of people are still holding their breath for HL3, especially without any official acknowledgment of its development and the release of Half-Life:Alyx. HL2 was also so long ago (16 years) that most young adults don't even have a connection to it, as they didn't grow up with it.