It would be interesting seeing Kazui Kurosaki and Ichika Abarai being the next generation of characters. As for Kazui Kurosaki I wonder what powers he would have, I mean lets look at his parents:
Ichigo = is a human and quincy with Shinigami powers, Hollow powers and Quincy powers. Has achieved Bankai, hollowfication mask and hollow transformation form
Orihime = has really powerful healing and defensive abilities
If Ichigo is a quincy then that should give Kazui Kurosaki quincy abilities along with shinigami powers and probably hollow powers.
Ichigo = is a human and quincy with Shinigami powers, Hollow powers and Quincy powers. Has achieved Bankai, hollowfication mask and hollow transformation form
Orihime = has really powerful healing and defensive abilities
If Ichigo is a quincy then that should give Kazui Kurosaki quincy abilities along with shinigami powers and probably hollow powers.