During Ichigo's training in the Dangai Precipice World, Tensa Zangetsu rips out hollow ichigo from ichigo's body, the two proceed to fuse and then disappear when ichigo uses FGT. Since ichigo's soul reaper powers have returned, it is not safe to assume that his hollow powers have returned as well because they originated from his shattered shaft training. Zangetsu has changed, but the method he used to reclaim his powers did not result in hollowfication the second time around. Then again, Kubo might throw hollow ichigo back in for dramatic effect, u never know