Crossposting from the Preview Game thread.
Shelters
Menagerie gets an unneeded boost. Fairground is better too! HoP is sort of better as well, in that Necropolis is one more unique playable card that you start with. Ambassador kind of takes a hit, which is fine. (Edit: and Donald actually addressed all those in his starting writeup, ha.) Jester also gets a slight nerf, in that there are less starting VP to hit.
You might not want to trash Necropolis, huh. Also, Ruined Village is probably going to be either "+1 Action" or "+2 Actions, discard X Cards", or +2 Actions with some other drawback.
Interestingly, you might opt not to pass Overgrown Estate using Masquerade -- trashing it yourself might be better, and if your opponent is the one who played Masq then you might not want to pass it because it might help him out when he trashes it!
Hovel is only better than Overgrown Estate when there isn't any trashing on the board, heh. I expect that will be less likely with Dark Ages cards on the board. Oh well!
OH. HUNTING PARTY HATES THESE.
Nothing else interesting that I can think of. Looking forward to seeing the full set!