Here's what I see that's new in this spoiler:
1: re-texture of gravestones & grave markers
2: blue flame blocks? (Doesn't seem painted because it looks like it gives off blue light)
3: web ropes
4: marble
5: sharpening stone? (Furniture)
6: necromatic or summoner table? ( table with 2 candles and a floating book + next to sharpening stone)
7:An even larger variety of banners & ones from new lunar event (seperate colors of slides instead of just slime banners are an example of new banners )
8: Silver & gold colored chests (they kinda look like a robotic face. Not sure if that was intended)
9: Some kind of pink/purple candle instead of water candle ( unless just painted)
10: Either Sundial or just a spyware clock re-texture
11: horse or dragon purple tinted statue?
12: special rainbow dye?
13: some kind of alien voodoo looking item
14: painting sold from traveling merch.
15: a machine-like item or a machine piece
So yea I guess that's it.
(Sorry this list took up so much space)
For Number 2, I realized they were using gemspark walls so it probably is blue flames, just painted.