Image via BBC Sign in to your Collider account It might not have come as a surprise to many, but most were still taken aback by the recent news that Doctor Who had been put out to competitive tender.

Have you ever wondered what would happen if the Tenth Doctor adopted a horse or invited a Cyberman to a trip in the TARDIS?

Article Summary UNIT's Rose Tyler update on the Doctor Who site sparks major fan theories and speculation. Recent rumors swirl about Billie Piper's possible return and the mysterious Sixteenth Doctor.