It would be a major change from the books, but on the bright side Siuan could give her "romance" with Gareth to Leane and take Thom's place in rescuing Moiraine. (It would make more sense than the story that Thom and Moiraine suddenly fell madly in love with each other)
I'm actually hoping that Asmodean gets merged with Thom (it would really put an interesting twist on his song The Man Who Can't Forget
to me it seems like it could have been written by Asmodean.