Game of Thrones / ASOIAF Gravedigger Theory – Will we see CleganeBowl in Season 6 ?

Here I discuss the gravedigger theory and the possibility of A Song of Ice and Fire / Game of Thrones fans seeing the ever popular Cleganebowl in season 6. Did the Hound / Sandor Clegane survive? Will he come back for vengeance on his brother the Mountain / Gregor Clegane ? New evidence that Rory McCann (The Hound) has been spotted in Belfast where Game of Thrones season 6 is filming. Discuss!