I really love how the new one looks, but only out of context of vintage story.
It's beautiful artwork, but it feels wrong for vintage story itself. The original logo feels dark and mysterious, and I feel like it really reflects the game experience and themes. I like the pops of color in the new one, and feel like it would lend itself well to explaining that vintage story isn't all crazy doom and gloom, but I think small bits of color could easily be added into the original one.
I definitely DO NOT think anything related to the themes of the new one should be added in game. At all.
I feel like that logo style and subsequent artwork or in game features would fit more for a game like hytale or something more at base light at fun (in vibes, I love vintage story with my whole heart, but part of that is getting murdered in a dark hole from a groaning monster you didn't know was added to the game and almost having a heart attack)