Yeah, it was pretty clear once Jason came back he basically had two speeds "I'm mad at dad" and "I'm Punisher in a batsuit". And there's just not a lot of vision to who that guy could be outside of that. Like, all the Robins were basically child soldiers, and this is the one who lost the most in that deal. Maybe there's some stuff to mine there about him trying to find healing through mentoring young heroes? I could see him going this weird route where he wants to direct young kids with powers, but hey fighting supervillains is a great way to die, so instead he makes a young super team that are basically caped first responders and it's effectively ER or Rescue 911 in spandex.
Or maybe he's a character who would work better if he took all that backstory and became the "what if Bruce Wayne retired from crime fighting?" character. A guy who's like "this stuff didn't work, so I'm going to do something different, but I still live in Gotham and I still know who Batman is, which complicates things".
edit: just off the top of my head ideas, not necessarily amazing, but like, it's the year of our lord 2025, there's got to be more space in this genre that Jason could explore.