I don't foresee a major release in the near term - but 1.1 will likely see some improvements to the current transition system to make it even more useful.
For the ecosystem, the next step is a new release for vue-router and an example of how it is supposed to work with vuex. After that, server-side rendering and test utils both seems like good ideas to tackle.
If I really do run out of ideas, I might try vue-native ;)
My long term vision for the project now is to make it a progressive framework: starting with a simple view layer as the core, with incrementally adoptable tools and libraries that enables large and ambitious applications. I want to make great ideas in web development accessible to as many people as possible.