The native compiler is maturing and they are moving the JVM and JS compilers to the IR format they have developed for that. Additionally, they are going to support a new type of library that compiles to IR and that is reusable for all platforms.

They already have a few multi platform things. Mainly Ktor currently, which kind of should work on native. Additionally, you can target the node-js ecosystem via Kotlin-js. Also, one goal with Spring Kofu at least is also supporting GraalVM at least.

They are also adding more platforms to the native target.

Reading between the lines with what was announced last week at Kotlinconf, I expect a lot of this stuff might stay at least partially experimental through the 1.4 cycle (current is 1.3.61) and would expect that they might start pushing harder on backend native stuff around 1.5. Also there are still a lot of question marks around things like WASM where e.g. MS has a more clear strategy with .Net and Blazor.