I live nearby in Winding River Plantation and my observations are as follows. RiverSeas seems to have two distinct housing areas, one section inside the gates and a cluster of small brick homes outside the gates. I have been in both areas and there are a lot empty lots inside the gated area, and it has some very nice large homes. I went through two homes during the Parade of Homes two years ago. It seemed like a nice area, but not many houses. A billboard just went up on Rt 211 with a realtor or builder advertising lots and homes for sale in RiverSea. I would have to drive past it again to see what is on the billboard. An out parcel of land at Riversea along 211 has been sold and a home builder has signs up to build homes on the land. I think the original developer had hope to build a retail on it. The developer at RiverSea has sold all the property so the homeowners are in charge. There website is:
River Sea Plantation - Home Page
There was an article in the Star News that condos are planned to built across the Rt 211 from one of the entrances to RiverSea. The project has been postponed for years due to the housing market collapse. You can do an internet search for this article.
Palmetto is being developed by Compass Point. It has patio homes that are connected to each other and single homes. A resident of Palmetto has told me that they held their holiday party off site due to the fact their clubhouse is too small for the event. Palmetto seems to be a nice area, but a portion of Palmetto had homes flooded due to Florence.