I said this weeks ago
Think about it:
Suburbs - New builds. Organic growth. Put the refrigerators in and UTP. Maybe fibre. Check.
Exurbs - Maybe fill out some areas where existing franchises are with new refrigerators. Take a look at data on population trends and build some new refrigerators.
Rural - Are you kidding me. Uverse technology wasn't built for that, and you have aged copper plants. Hybrid is only reasonable over coax. Now wouldn't that be funny if they went to coax
Just with new starts and filling out exurbs they should be good for a few million homes.
There are only two long term options in rural areas: Fiber or wireless, or a combo. Can you say whitespace.