I had wondered about the question what has become of Sela myself.
Before Nemesis hit the cinemas we had a game going in which she was a very powerful, cunning and intersting reoccuring villian. I always liked the torn nature of the character and the background.
I was deeply disappointed on multiple levels with Nemesis, that Sela wasn't part of it was a minor complaint.
That Sela didn't feature in any of the newer Trek books (that I had read) was another disappointment to me as well. I have only just heard (by reading this thread) that she appears in Death in Winter.
A cunning and plotting character like her should have felt right at home in the chaos that engulfed the Romulan Star Empire after the coup and then fall of Preator Shinzon.
Amen.
Especially considering the civil war...and Donatra's rebellion. Considering her unflinching loyalty to the Romulan State, I wonder how well she'd get along with the new Praetor. T'alura, isn't it?
Hmm...
(Jots furiosly in notebook)