I don't mean to be a d1ck, but you do realize that if you know how to utilize a search engine, you can find the information yourself.

But out of half-kindness, you can click here and find out for yourself.

I am assuming this is what you want:
https://www.kickstarter.com/projects/11bitstudios/frostpunk-anthology-and-frostpunk-2-artbook

If not, searching can help, meaning, you can satisfy yourself by trying it out.

I was wondering the same thing myself. All the posts are from June/August 2024 and only say "later this year". We're in 2025 and the kickstarter has not opened yet. A little update would be appreciated