2- If housing gets more expensive, many families won't be able to afford a house on Cape Cod. Some families will probably move away and others will continue renting.
3- I heard that another seafood restaurant will probably open in town.If it opens, there will be more jobs for the locals, but the other restaurants in town probably will lose customers.
4- Traffic will get worse if more tourists will bring their cars to Cape Cod. There probably won't be enough parking spaces at the beach.