Yes, they will freeze well for up 4-5 months for maximum freshness. You can either freeze the unfrosted cake whole or in individual slices and add fresh frosting when it thaws. Or, you can freeze the chocolate cake complete with its chocolate cream cheese frosting. It is best to make room in your freezer and flash freeze the cake uncovered first to harden the frosting. Then wrap it in paper followed by plastic to prevent freezer burn and keep moisture out. Or, freeze pre-cut slices in an airtight container if you have the space.