Overall I think King failed at making Thomas a well written antagonist, I'm still not entirely sure what motivates him to name one example, but I was pleasantly suprised by this issue.
I liked that Thomas didn't want to fight Damian at first. He sees Damian as his grandson and Damian does look a lot like Bruce from the Flashpoint universe when he died. It could lead to a conflict between Bane and Thomas, should Bane decide to kill their new hostage. Redemption in some capacity might still be possible for Thomas.
However, King has let me down so many times now, I don't want to set my hopes too high.