I am hoping that the next evolution of AngularJS (3.0) will align much more closely with Durandal, Web Components API, and Polymer. There is really no reason why custom Web Components cannot become just a standard practice for the web. And that's nothing like Angular custom directives, which are confusing, I think, because whereas in most cases Angular balances flexibility and prescription nicely, custom directives are incredibly flexible - transclude? allow directive through attribution or class, or just elements? and so forth. Custom directives are just way too flexible, and they need to be a simple API for doing one thing well, not a combinatorics problem.
On the other hand, what Angular provides that Durandal does not is exactly that balance of prescription and flexibility. Angular tells you how to do things like module structure and model-view-star, and as a development project lead, I appreciate that, because this makes establishing best practices and code reviews manageable. That is why I am expecting great things from Angular, especially if the next version also results in an update to the angular-ui.bootstrap project, providing a ready to use library of web components.