User blog comment:Bigez620/90% of Rumors are NOT true/@comment-1756703-20110126203031

I think there will be a lot of fan demand that the characters from the first three seasons return in a future season, if only to resolve various plots and establish a "happy" ending for them.

Having said that, there's no guarantee that they will return. So yes, everybody should cool it with the unconfirmed information being spread around, especially if it extends beyond TDR.