I can't imagine what their focus would be with such a store. People go to Walmart because they carry a little bit of everything. No one would go to a tiny Walmart because they would have no idea if they had what they needed.
My best guess is that Walmart isn't planning the rumored neighborhood shop.
Several big box stores, including Home Depot haves toyed with the idea of opening neighborhood shops, tiny versions of their stores. They don't work because in my opinion because big box stores business model is based on economies of scale. For the price they would pay to be in Grayton, plus store costs, labor, etc, they could be on cheaper land locate a bit farther out like 98, for only a little more cost, but they would have a much bigger pool of shoppers from which to profit.
FYI the smaller" Walmart on 98 was required by the BCC (if I correctly recall) to carry a minimum of 40% groceries.