Many thanks for the "heads up".
We stop at Fisherman's Corner (Hampton, Illinois) C.O.E. campground every year for several days stop-over on our annual trek out to and back from South Dakota in the Fall of the year. I will have to keep an eye on this new development for details. Fisherman's Corner is a small park but very popular, even with the local residents from the Quad Cities area.
As a side note: We find The Brothers Family Restaurant just a few miles north on Rt 84 in Rapids City, IL, a great place to eat. Good food, good service, and big portions. And you can't beat the low price. :)