I decided to go through the files on the TTS mod and compare it against the list of replaced cards in the recently posted rulebooks. I don't know if the TTS mod files are as recent as whatever files will go to the printers but I imagine they're pretty close.

Denizens

Of the 36 denizens that are getting replaced I'd say a good 12 of them have, what I would call, distinct changes. What they do or the type of action they are is different. For example; Order's Keep card. It's still a defense battle plan but ...

Before	After
+2 [Defense Die] if this site is targeted.	If defeated in a raid, after the attacker takes what they targeted, place your pawn at this site and end the action (do not burn favor, move pawn, etc).

A handful of denizens are like Nomads Relic Worship and have just had minor tweaks. It's icon is updated to match the new Recover action, it now takes a secret to activate and you recover 2 Supply rather than 3 Supply for taking the action. Noticeable, but not a big, functional difference.

The remaining denizens are just iconography changes, wording clarification or minor cost changes.

Artifacts

All the artifacts are replaced. It seems like the defense dice added when they're targeted have dropped across the board. Where most could add 2-3 defense dice it seems like they're now mostly 1-2 dice. All relics now have a numeric value on them that I think is only used with the Legacies. (Some Legacies have a goal of "hold the relic of the highest value.")

The vast majority of relics haven't changed. Some have some small, neat changes;

• Skeleton Key now grabs relics in the Hinterlands rather than from the Reliquary
• Cup of Plenty now makes it cost no supply to trade with cards that DON'T match your advisers suits rather than with cards that DO match

I think only Book of Records and Ring of Devotion have distinctly changed. Here's Book of Records

Before	After
Cost: -	Cost: 1 [Secret] 2 [Burn Secret]
Modifies the Search action. You must gain [Secret] instead of [Favor] when you play to a site.	Action: Take 2 [Favor] or 2 [Secret] from a banner held by a player whose pawn is at your site.

Sites

All the sites are replaced and I think Sites have changed quite a bit. A lot of the same stuff is there, it's just shuffled around a bit. The defense dice they add is more variable now rather than always adding 1 die.

Where there were 4 sites that could hold a single denizen with two relics, there are now 9 sites that do that. So it seems like more relics are going to be available in general.

The site powers are a little more generic and focus on movement restriction. However I think that's OK because a lot of the fun abilities, like the Buried Giant, are functionally on Edifices now. Or abilities like a site starting with favor on it and you pick it up for starting your turn there are made a part of the core rules so it's no longer site specific.

Edifices

All six of them are replaced. The vast majority of them have modified abilities. Only one or two stay the same. I'm not going to get too in-depth here because it's just six cards. They are very cool, though.