Well it looks like you found the site of Portal:Aftermath. If you have any questions about the mod please attempt to contact a member of the team. I will be updateing the site and information about the mod every now and then. The current Expected release date is set to May 18th 2015 due to how small the team is and what little experience we have with specific parts of the mod creation process. I hope that you will look forward to the mod's release just as I look forward to completeing the project. Currently Mapper's, Skinner's, Voice actor's, Chamber ideas, Music, and possably modelers are needed for the team. Help has already been given by the Portal: Prelude team in the form of permission to use the Reskinned Manhacks and the replacement Manhack sounds.