Green Man Gaming reached out to let us know that the Steam Early Access program for The Black Death has been pushed from March 2016 to April 19, 2016 to give the developers more time with game systems and professions.
The good news for players is that the next profession, the Trader, will be revealed soon along with information about the game economy and trading mechanics.
You can read the full notice on the Steam Early Access page for The Black Death.