I honestly liked how Talia was originally like how she was always torn between her loyalty to her father and to Bruce I really don't care for what's been done with her and I've always hoped she some how returns to how she was originally. I've always felt like one of two things could happen it could come out that Talia was abducted after giving birth and replaced with a clone or something and I think that would be interesting especially if Damian discovered his mother in some cell belonging to a random whatever secret evil paramilitary organization and quickly realized that she was not only his mother but was also in the dark about what had been happening with Damian. I only came up with this idea because it seems like a standard retcon move comics pull.
Alternatively I feel like maybe Talia getting locked in Arkham and being subjected to a very cruel form of "therapy" by someone like Dr. Strange and or Scarecrow (I think Strange would be a more likely candidate for something like this though I mean he even did it in Gotham) would be interesting and for her to be released after being deemed "cured" but for the real reason for her being released being that it's part of some scheme to attack Batman and Robin emotionally and for Talia to not actually be cured but for it to be implied that she was like a time bomb that would snap. Like Strange deducing that Talia would likely keep trying to make things right with Damian knowing he would never be able to trust her and consequently would reject her and make her fully snap and kill him but for something unexpected to happen like after being rejected by Damian, Talia tries taking her own life but is saved and Strange is stunned that she didn't kill Damian.
Though I feel like even if Talia did get locked up in Arkham just knowing that she was "cured" by the doctors there, would send off a red flag for Bruce and he'd just know something was up.