So I went to Dick`s Thread (full credit to nigthbird for the info disclosure) and came across new stuff from the upcoming Titans show and more importantly the Robin role.
It might be relevant to check, mostly because of the earlier casting call list and quote:
[DANIEL CROSS Male, 17-19, Caucasian. Athletic, street smart, cocky, yet charming. His life is changed forever when he crosses a crime fighter and is given a new outlet for his rebellious ways. RECURRING GUEST STAR]
https://www.cbr.com/titans-casting-breakdown/amp/
Some speculations are in order, one of them being obviously Roy (which I don`t believe it will because of the Arrow show) and Danny Chase (alto that doesn`t sound like his character origin at all), so that leaves a young Jason who will eventually grow into the role?