WRP is primarily for turning farmland, that was once lowland marsh and then drained with tiles and ditches for farmland, back to marsh.
Not sure what you mean by income options, but by signing a WRP contract, you will lose all rights to do anything to the land. You can walk on the land, hunt, shoot ducks, and enjoy the view but that is about it. You will need a permit from the NRCS to plant a tree, put a food plot in, put a locked gate, mow a trail, etc. The NRCS will retain all rights not set forth in the contract to the landowner.
The NRCS here in Wis is full of eco-activists. I once owned a large tract of WRP land and it was a nightmare. At one point they tried to tell all WRP land owners that they had to remove their deer stands & duck blinds after hunting season. Took me 18 months to get 2 acres of food plots approved and permitted on 300 acres. If you are surrounded by ag, they may decline food plots as there is already sufficient food sources.
The land will actually loose value, even thou you will pay high rec land property taxes, because it is in WRP.