Beta 13 - Extend Router

I am wanting to extend the router so that it will wait before animating in. (I have a lot of of JavaScript running and it looks rather bad). For example, I run a database call, populate a slider using ng-repeat and then initiate the slider. I want to animate in after the slider is initiated, instead of before the database call.

Does anybody know who this can be done without editing ionic.bundle.js?

Thanks.

After Updating to rc.1 it seems better.