As @Jerle mentioned, there isn’t a detailed roadmap presently, which is a bit of a bummer. I do, however, understand that they are still pushing content from multiple different angles, and things in the Alpha have been in flux enough that maybe it would have been counterproductive. Hopefully, during the beta, they’ll be able to provide one, to help folks who are still on the fence have a better idea of what’s in the pipeline.
That said, the team here has been very present, particularly in their discord, giving their thoughts on things and sharing information regarding development. They are also pretty responsive on reddit and here in the forums when threads are created about various topics. I’ve also been impressed with the progress they’ve made since the pre-alpha demo. Thus far, they’ve delivered on promised dates and the content has been well done, which would lead me to believe that they will hit their intended release date, and that the game will feel complete when it is officially released.
If you are still on the fence, I recommend waiting until the beta releases (April 30th I believe) and check out the patch notes and community reception then.