Good news.
The Kotlin plugin will be part of IntelliJ IDEA 15.
Today, we’re excited to share with you that the EAP build we published yesterday comes with a bundled Kotlin plugin
JetBrains aims to release Kotlin 1.0 this year.
If you’re following the latest news in the Kotlin blog, you may know that its team is working hard to make it ready for the release this year.
http://blog.jetbrains.com/idea/2015/07/intellij-idea-15-eap-kotlin-love/