These are a few examples of directives that would be possible

* Attributes that start with bind-once-*
* Attributes that start with bind-on-notify-*
* {{:foo}} and {{::foo}} (from angular.dart)
* Ability to implement an alternative of ng-class that changes ng-class=”{foo: fooExp, bar: barExp}” to ng-class-foo=”fooExp” ng-class-bar=”barExp”