I believe I did point out that Wilf, Jackson, and all the characters from series 1-4 still exist. Just because they haven't been directly referenced in a episode does not mean they don't. Donna was shown in "Meanwhile in the Tardis" and not to be glib but as others have stated in the past we still have the DVD's to enjoy. Suggesting that the time cracks rebooted the universe in a literal sense in an attempt to erase previous history is not what the concept of it was for...at least my opinion. Again not to keep attacking your view point but it seems like you don't like it because it conflicts with your personal continuity of the series. I like to think that everything that has happened in "Doctor Who" and "Torchwood" happened.