Hate to go off on yet another tangent, but....
And remember the Merchantman? Study models were made for that as well, one of which can actually be seen sitting in Spacedock (the barge/dumpster-looking thing under a ramp). It doesn't look anything like the final Merchantman design.
You have a source for this, or any other info? This is the first time I've seen anything new on that particular ship in years. The last time I saw it discussed was back on the Flare board, where it was undecided whether it was a ship or part of spacedock, and had basically become Topic Verbotten (like the length of the Defiant).