First,I would like to see Kate Kane retire after her marriage,so can Barbara Gordon turn into Batwoman,because Dick was Robin and turned into Nightwing,Barbara was Batgirl and turned into Batgirl? This don't make sense,Dick can turn mature but what about her? Even retired Kate could teach her something,could be his Oracle. After that Steph could turn back into Batgirl after some months of training in China with Cass.
Harper Row should turn into the new Oracle or the new Harold. Batman should continue without a Robin. In the Batcave,right after Jason costume could be Damian costume.
Cassandra should come back as Black Bat but with a more high-tech costume.