No that is not supported (yet) Don't know when we really will build that, this is also because the current way of single page applications that is very uncommon thing todo, to really open a window Also is it a window or another tab? Because opening another window is also controlled by the browser itself and what it is going todo with it. And that is besides the popup blockers..
I wanted to do the same thing. I already had an ng-service-package in place (resulting in a servoy plugin) and could easily extend with a function calling 'window.open(myURL, '_blank')' in the browser. Like Johan already mentioned, you will encounter popup blockers that just won't allow you to do this.
So far, behaviour in different browsers was very different. Reason for me to just not go this way.