Good question, I have been a long time fan of SW since the very beginning in May, 1977. It seems Disney is reluctant to provide us with their 3D versions of the movies. I do not understand this. The only 3D set that I have is from STAR WARS: THE FORCE AWAKENS. That was a completely separate black sleeved set for purchase.
Hopefully, they will release it separately, but it does not appear it will be a part of this particular set.
Only the 4K UHD/Blu-ray/Blu-ray special features discs/Digital Copy for each movie are in it.