Questions about the project ideas of GSoC 2019

I’m a student majoring in computer science. Recently I’d like to apply for GSoC and work with open source communities. Since Scala is one of my favorite programming languages, I’ve been looking for opportunities to participate in some projects of Scala community.
I’m quite curious about what kind of project ideas you will post for this year, so that I could get familiar with the tech stack in advance. But I found nothing in the official website ( May I ask when all your ideas will be published? Or are those unselected projects in 2018 still available (e.g. Scalafix in the editor)?

An Xiao