You can make a very good case for any organization to replace
Java => Go
C++ => Rust
The Database and System software that was created in 2000s very much was based on Java. But modern, performant Database and System software is written in Go/C++.
I'd definitely take Kotlin over Go. That you can reuse the java codebase is a huge win, but even apart from that the language is a breath of fresh air.
