Just some observations...

Observation: Steam.db says the game has not been updated for 4 days now. For at least the past month it was updated 1-3 times a day.



Theory: Early Access is ready and is now being published.



Observation: Under packages in Steam.db it is called Killing Floor DLC2 Early Access Comp



Theory: "Comp" means complete. I don't remember of the "comp" part being there last time I checked.



Observation: Munk retweeted a pic from someone from PC Gamer http://ift.tt/1y23Wz3



Theory: I'm pretty sure I see Munk and Gibson in the background. Early Access is done, PC Gamer got to play it and will be writing an article on it soon.



Observation: The soundtrack comes out the 21st.



Theory: It would make sense for the soundtrack to come out sometime around the actual game.



Observation: The game is still in between games that come out April 1st and 2nd



Theory: It could have been their date they had in mind. I'm pretty sure they have said they are on or ahead of schedule. With the things I said above it could possibly come out on one of these dates.



TLDR- I have too much time on my hands