any update on when you'll start the Beta test?
Can't be specific yet, but we're getting very close now

The game has reached a stage where player feedback will become very useful. We just need to decide if the technical side of the game is solid enough so we don't get overwhelmed by adding beta management on top of the requirements of the game development.
Btw: Any chance for revealing an approximate release date yet, for example something like "sometime in July"?
That depends on the beta test really. We can't specify a release date until everyone (developer, publisher and players) are happy with the result. But I'm sure all three of these groups want that to be as soon as possible
