I have created a Module example: Module named "blah", Now I want to make it so no one besides the super user is able to add this module to their portal. Due to the security levels this module touches. Is there a way to do this and how? This needs to go across multiple child portals, so I would hope I can set this in the Template portal then export the template so that when I create new children portals using this template that the module will still be set so only the Super User can access the module.

You will want to take a look at these tutorials:

How to Limit Modules Available in the Control Panel (Premium Modules)
How to Configure Which Modules Non-Administrators Can Add to a Page

A SuperUser can add any module to any portal/page. I'm not sure that this extends to portal templates as I have never tried that. I'd suggest that you try it and see what happens.

I think that I misspoke a little. If you "unassign" a module from a portal, not even a SuperUser can add the module in the portal. So, you'll have to turn it on and off to add it.