You can bet Durham's report will be public. In Barr's order appointing Durham as Special Counsel he specifically states (italics mine):
"In addition to the confidential report required by 28 C.F.R. § 600.8(c), the Special
Counsel, to the maximum extent possible and consistent with the law and the policies and
practices ofthe Department ofJustice, shall submit to the Attorney General a final report, and such interim reports as he deems appropriate, in a form that will permit public dissemination. "
You can bet Durham's report will be public. In Barr's order appointing Durham as Special Counsel he specifically states (italics mine):
"In addition to the confidential report required by 28 C.F.R. § 600.8(c), the Special Counsel, to the maximum extent possible and consistent with the law and the policies and practices ofthe Department ofJustice, shall submit to the Attorney General a final report, and such interim reports as he deems appropriate, in a form that will permit public dissemination. "
https://www.justice.gov/file/1370931/download