After reading the recent interview at hl2world, I'm starting to wonder if there'll be a half-life 3. Doug stated "What is HL3?" I remember a quote from an interview with Gabe saying something about "it's better to have five one year projects, the one five year project." Maybe they will start development of HL3 after the HL episodes have been finished, but it is starting to seem like we aren't going to see HL3 for a long time, if at all.