http://www.pcgamer.com/half-life-2-aftermath-mod-alters-launch-schedule-in-light-of-episode-3-synopsis/

Following the publication of ex-Valve writer Marc Laidlaw's Episode 3 synopsis last week, speculation has taken hold of certain facets of the Half-Life community. Despite intrigue many questions remain unanswered, which has in turn prompted Lever Softworks to speed up the release schedule of its Half-Life 2: Aftermath mod—a mod designed to piece together the absent and elusive third chapter of Gordon Freeman's adventure.  

"In light of recent events in the Half-Life community, the release schedule for this mod was sped up significantly," so reads the mod's ModDB page, off the back of Laidlaw's Epistle 3 posting.