Extend Bootstrapped module AngularJS

Let's say I have a really big application and at this time I have made the general user interface but...

... the application is too big. I have a lot of controllers and directives and I don't want to load at start. Instead I make a $http request to a remote API who provides me the template of the uri to load (in a tab for example) and the name of the module to bring the template to life, because I have a Angular wrapper which auto-loads the files with the modules for the current defining module:

Shx.module('mrsCatalog' ['mrsGrid', 'mrsView', 'mrsForm', 'restApi')
///...angular module code

it loads (those which arent loaded yet) the modules on the files /mrs/grid/mrsGrid.js etc.

And the problem is that I don't know how to put the code of the template cause the actual module (core) has no available the directives or controllers for making the catalog. For instance; but if I put it first and later do an angular.bootstrap() it results in an error because Angular attempts to load the catalog HTML code...