I though it was "Garth Vader" for a while back in '77. I have no idea why. ;)

When I first saw the DSII on the cover of Starlog before Jedi came out, I was convinced it was the remains of the original Death Star being rebuilt.

I also thought Boussh was a new bounty hunter or mercanary hired to help rescue Han. Boussh would be revealed as a woman, who falls for Han, and cause more complications for the now infamous love triangle. Amazing that the truth didn't leak out before opening day!