Does Daenerys' vision foreshadow the winner of the 'Game of Thrones?'

I just came across this video on YouTube, and I find it quite interesting.

Everybody who watches "Game of Thrones" knows how big George R.R. Martin is on foreshadowing- comments or symbolic events which foretell future happenings on the show.

This vision might be the biggest foreshadowing of all. Does it tell us who will be on the Iron Throne when the series ends?