Board Game Arena

Can someone explain to me the new wonders that have appeared in this season's Arena games?

After playing a few more games, the only one I have seen is Carthage, although I haven't been given it to play yet.
How do people rate this wonder, and which side seems best? It looks pretty strong to me, particularly the night side.

There is only Carthage, a wonder that came with edifices but does nothing new, hence the "compatible" mention. The plural makes me think that other expansions are coming, which I have mixed feelings about but why not.
Carthage is flexible and very fun, but not too strong. Unstable I'd say. If you're not careful with timing and war/science dynamics, its stages can get really bad, like Rhodes and Babylon. It needs skill I feel. Day side is easier to play but, as nearly always, not as powerful indeed.

I can only speak to 3 players but from playing with Carthage roughly 20 times and seeing it played many more, I think Day side is overall considerably better. With night side how often are you really going to do well with science while not starting out with a luxury good and needing to be able to buy up to three ore and three timber? How often will you get a non-science card out of the discard pile that's worth 7 points (like what you get for final wonder stage on Day side) or more? Carthage Day gets more points from three wonder stages than any wonder other than Giza (14.33 vs.15), has flexibility in the second stage to adapt to the game situation, can bail you out of resource troubles via gold, and is in a better position for military victory than any wonder other than Rhodes.

Carthage Day is actually a very powerful wonder, IMO.

It's possible. I struggle with it, personnally. I feel like having to choose between a weak Ephesos an a weak Rhodos. Night side is demanding and risky but it can do pretty much anything if the setup is favorable. Next to Rhodos, the 3 ores are really easy. If you're between Rhodos and Ephesos, I don't see any good reason to take the way more expensive day side; since you're potentially between red and green, the fact that you always have a plan B is a plus. But like always in this game, it depends. For now we're lacking meta.

In Edifice though, all day sides seem reinforced in my short experience. It is of course most visible with Baby, Rhodes and Carthage, since you don't want to be excluded of a project before the game even begins in a lot of cases (with some exceptions : age 1 projects are sometimes weak, with a penalty that's easy too defend against. I even prefer the -2 points sometimes), so only 2 stages can be a no-no.