Rust because it's a systems/native language and seems to be the go-to language for new projects that would have been started in C++ some years ago.
Kotlin because it's a nice modern language that can be used both on the frontend (Android and lately some iOS and Desktop, sometimes even web) and on the backend. Yes, it's a typical OO language that inherits some of the "ExtremeOO" properties from Java but it fixes some of Java's (former) issues as well. Having the whole Java/Maven library ecosystem available is also a big plus in my book.