We're not saying Yara — named Asha in the books — will never unite with Daenerys. But, in the books as of "The Winds of Winter," she's a captive of Stannis Baratheon. Her uncle Euron Greyjoy has still taken over the Iron Islands, and he married her off to a lord there in "A Dance with Dragons," to prevent her from marrying herself to someone else for an alliance.

The showrunners renamed Asha to Yara in the show, because the name was too similar to Osha, the wildling, and could have confused viewers. It's currently unknown how she'll make it out of Stannis' captivity.