None of this stuff is in permanent locations. 1. There will be new dunes, again above where the water reaches. 2. The beach will be the same size. 3. There w

None of this stuff is in permanent locations. 1. There will be new dunes, again above where the water reaches. 2. The beach will be the same size. 3. There will be marshlands. They will be in new locations. We might even get more. 4. Yep, lose some swamp and gain other swamp. It all moves. We can get more than a 2ft rise just from drawing out groundwater, causing the land to sink. We can get way more with an earthquake, going either direction. The land goes up (and the water relatively goes down) if the weight of a glacier is removed.