Not sure if it was mentioned here, but we have the original proposal for X-Factor, minus the return of Jean Grey. As someone that really didn't like the return of Jean Grey, because, IMHO, it cheapend her sacrifice, and the awsome story that was the Dark Phoenix Saga, and it ruined Scott's character, I sure would have liked to see how X-Factor would have turned out with Dazzler, or Maddie getting powers, which, I think, were the two proposals on the table.
Peace