Which fan theories about the Viking TV series have been proven true or debunked over time?

The popular TV series, Vikings, has garnered a large following of dedicated fans who have come up with many theories over time. Some of these theories have been proven true, while others have been debunked. Let's take a look at some of the most popular theories and whether or not they hold water:

• Theory: The series will end with the Battle of Hastings.
  Status: Unconfirmed, but unlikely. The Battle of Hastings took place in 1066, long after the Viking Age, which ended in the mid-11th century.
• Theory: Rollo is the father of Bjorn Ironside.
  Status: Debunked. While Rollo is a historical figure and the uncle of Bjorn, the show has not confirmed this relationship.
• Theory: Floki is still alive.
  Status: Unconfirmed. Floki's fate was left ambiguous at the end of season 5, but it is rumored that the character will not return in season 6.
• Theory: Lagertha is not actually dead.
  Status: Debunked. Lagertha's death was confirmed in season 6, episode 6.

While these are just a few examples of the many fan theories out there, it's clear that some are more likely to be true than others. As the series continues to unfold, fans will no doubt continue to come up with new theories and speculate about what might happen next.