3. Walt Jr. Must Discover His Father's True Legacy
It's an issue that hasn't really been tackled at all in the show yet, as Skyler and Walt both do a decent job of insulating their children from their incendiary personal lives. But something will have to give eventually, and there is only so much time before one or both of Walt Jr.'s parents makes an infraction that in some way reveals Walt's chequered day job. How Walt Jr. would react is anyone's guess, but I expect the revelation will be made apparent when one of Walt's enemies comes knocking at the White household, likely looking for blood.