- Oct 25, 2017
If you are going down that route it makes even more sense for Tyrion to be bastard.Are you sure the timing doesn't favor Jaime/Cersei?
Also, I think Tyrion doesn't ride a dragon, I think he will lead the attack to kill the last dragon (Drogon) when it attacks King's Landing when it's on the loose and Dany is AWOL or dead.
Tyrion being a secret Targ would ruin his story with Tywin's. Listen to The Reins of Castamere, it sounds like Tyrion speaking to Tywin after everything is over (the first line being Tywin, the rest being Tyrion), how he's as much of a Lannister as his father.
Since the songs goes "only a cat of a different coat" ; The Lannister Lion is gold, the Reyne Lion was red. If Tyrion were a bastard it would be typical to reverse the colours of his House Arms, like the Blackfyre's banner is the reverse of the Targ banner. He would be a Red Lion and not a Gold one.
Remembering that his mother was also born a Lannister, so his Lion lineage is not just through Tywin.