Yeah, Something like that. Adam can vouche for me on the validity of my post though ; ) .
Nope, Heretic is indeed the remake of Midship though. Most people thought assembly was supposed to be, but it actually turns out that Heretic is almost an exact replica of the H2 Midship, just nicer looking.
Hopefully Bungie will release some pictures of the rest of the maps for everyone though.
-Doom