Are the Brothers without Banners and the Hound simply traversing through the Riverlands now or will they run into another major character like Melisandre or, better yet, Arya? 

In their last season six scene, Thoros and Beric had their thoughts turned towards the north and the Night King. Perhaps they’ll make their way to Winterfell to help Jon Snow with the great war against the White Walkers.

Fans are even hoping the Hound crosses paths with his older brother the Mountain for an epic showdown that's known as Cleganebowl.