It won't happen because this whole rumour is based on nothing. It started with a post from John Gruber who expressed his opinion that it would make sense for Apple to align the iPad schedule for Autumn releases to strengthen the holiday quarter. However, he took great strides to inform people that this was just a personal opinion, and that it was not based on rumours, or whispers or inside information.
Then, some guy at Techcrunch read his posts and said "Uh, yeah ... me, too! I heard that!" That was all it took.
Think about how many rumours based on supposed sources come true each year. Very few. So how many do you think come true based on one man's thought that this would be a good idea. None!
When Apple said this was the year of iPad 2, I think they meant to squash this rumour indirectly.