A couple of days ago in an interview, it was revealed that Pikachu was originally going to have a second evolution known as Gorochu. This idea was scrapped to make way for Pichu, but it was described with fangs and horns, and would seem to be a cool Pokemon. I think that Gorochu should be added to the next generation of pokemon, making pikachu the first pokemon to have a four stage evolution line, and because Raichu is not that strong, this could seriously help the evolution line!