The only real difference in mine was the ALJ was corrected/guided by the federal district court order, so there was no dispute over those areas. We did have a different ME, who actually agreed with my own doctors, so everything was disposed of rather quickly. VE was present but not needed.
Other than that, there were no other differences from original hearing (both were in-person, about 4 years apart I think). After ALJ swore me in, she acknowledged and summarized the findings of the FDC.