Jason Momoa, the dreamy actor who played the dearly departed Khal Drogo in Game of Thrones, has been lately taking pictures with the HBO series' showrunners in Ireland. This is interesting, because much of the show is filmed on the Emereld Isle. So... is Daenerys' favorite husband (f*** Hizdahr zo Loraq) coming back?
(Spoilers, obviously) Well, Drogo is dead. So dead, in fact, that Daenerys herself mercy-killed him out of mercy after a witch "preserved" his life from a fatal infection but left him brain-dead. There's not even the possibility of a Jon Snow-style resurrection, because Dany burned his body in the funeral pyre that brought her dragons to life.
However. Drogo could come back in a dream or a vision. He already did so in season 2 during Dany's trip through the House of the Undying. After all, Bran apparently still has his Greensight powers.
There's also another theory. After the witch Mirri Maz Duur destroyed Drogo's mind back in season 1, she told Dany that she would see Drogo again when the following happened:
When the sun rises in the west and sets in the east. When the seas go dry and mountains blow in the wind like leaves. When your womb quickens again, and you bear a living child. Then he will return, and not before.
At first, it seems like all of these things are impossible, and the point the witch was making was that Dany would never see Drogo again—but they also seem like a prophecy, right? If so, there are some elaborate theories about what all this could possibly mean! But more simply: he might have a cameo.