We are at Part 4 of the final stage, which means we will get Braavosi Galleon (rare), and we still have a chance of getting Braavosi Longship (legendary).
However, based on the progress speed of first 12 hours of Part 4, we are falling behind.
We're about 12 hours over the deadline if we maintain the same progress speed.
UPDATE: we got up to 57% in 46 hours,with 28 hours to go. This still puts us about 8 hours over the deadline, but we're getting closer. Still need to push harder!