Where did you read that was the release date? We've been working on a release schedule of putting each out at the end of the month. The layout of Shelter from the Storm is complete, except that we noticed a piece of art had been lost accidentally, so we're doing some last-minute revisions to fit that in. It might be up as late as tomorrow, April 1st, much to my chagrin.
However, for the future adventures, I should be getting the final draft of adventure 5 in a few days, so we're pulling ahead of schedule. Honestly, fault for the lateness of this adventure rests solely on my shoulders, since I had a houseguest last month, and didn't devote the time needed to finish writing it.
Luckily for subscribers (but sadly for me), my lovely houseguest has gone back to Brazil.