The plan is for part two to be similar in scope and playtime to part one, expanding and deepening, as well as introducing some new mechanics.
Since I'm almost a solo developer and combining the work with another job, it takes some time. But I think it will be worth the wait. The goal is to release part two later this year!
To show support and not miss out on the drop, Wishlist the DLC here:
https://store.steampowered.com/app/3722560