What makes me think its possible (but not very likely though) are the following:
1) The lack of burial (perhaps he was ditched and nursed back to health as well)
2) GRRM often/sometime uses the word "death" to illustrate something different than actual "death". That part of the character dies, but not actually the character itself (for example the hound under the tree)
4) I remember from the books in the tavern someone is discussion if really Viserys is dead. That no one really knows.. This might be a hint from GRRM that he is still out kicking.
5) The 3 dragons. Each for one rider. Jon Snow might be the rider of the dragon named after Rhaegar- because its his father (if you believe R+L=J). Dany are meant to ride the dragon named after Drogo- her husband. But who the hell are going to ride the dragon named after Viserys? Someone with some connection to him, right? Who has the more connection than the man himself
I know this is a long shot... And to those who will ask what he has been up to all this time.. Perhaps he has joined the GOLDEN company
Edited by Viserys - The last dragon, 17 September 2013 - 08:13 AM.