We may also receive granite, andesite and diorite in the new update because it was also in the picture that showed all of the features that are currently in the game. This is one of those that are technically in it. You can't use it yet but the new update may add it. It is kind of weird though since that isn't in the update that we should be getting. It means that if it doesn't come in this update, it will come in the next one much faster than the other updates take since most of the update with these blocks is mostly already in the game. Can't wait for the new update!