intends on continuing the Half-Life series after Half-Life 2: Episode Three. Big news, we know.
When Stuff We Like asked Valve's Doug Lombardi about the possibility of a Half-Life 3, he responded that nothing has been announced, but that Half-Life "won't end at Episode Three." Originally, Stuff We Like reported this news as "OMG WORLD EXCLUSIVE HALF-LIFE 3 CONFIRMED" (we're paraphrasing, of course), but has since recanted, admitting that all this means is that the series will not conclude with the third piece of episodic content.
We're curious to see whether Valve intends on continuing to release episodes connected to Half-Life 2, or whether they will in fact move forward with a third title in the series (episodic or otherwise). No release date has yet been confirmed for Episode Three.