Hard to say. Verizon will usually not disclose this sort of information to the public. But, if you check for regulatory papers from the FCC or for the local municipality, you might see activity from Verizon or one of their subcontractors regarding equipment installation.
For the going forward, your best bet for getting service is to make sure your phone is equipped with Voice over LTE. Shelby County according to the coverage map has more LTE coverage than 3G coverage. Any future builds may incorporate 3G, but a shift to LTE Only is going to be happening in the near future.
