Interesting, haven’t thought of that scenario.
However, I don’t see Tywin reacting to Rhaegar dishonoring his daughter and Aerys holding his daughter and his grandchildren hostage with fighting on his behalf, given how he reacted to Aerys holding Jaime hostage in OTL.
Well, I think the question hinges on if Rhaegar even “abduct” Lyanna if he had married Cersei. I always thought that came about mostly because Elia was not the healthiest of women, and Rhaegar felt he needed his third head.
Stephen, do you feel that Rhaegar wanted his third head to have a Northern woman, that his crowning of Lyanna was inevitable, no matter what?
I think he thought it had to be a Stark. (Also, it’s Steven w/a v.)