In the February 2021 Assessor newsletter, the Council announced the following.
“Because of the broad impact PCI DSS has on the payment community, the Council is seeking additional feedback into the PCI DSS v4.0 validation documents. As a result of expanding stakeholder feedback opportunities to include these supporting documents, the Council is now targeting a Q4 2021 completion date for PCI DSS v4.0. The publication and availability of PCI DSS v4.0 is still being determined. The Council will communicate the targeted publication date in the coming months.”
So we will apparently see one more iteration of v4 before it is released. According to their blog post, the comment period will start around June 2021.
See their blog post for more information.
One other important item from the newsletter for all QSAs, do not forget to register for the next All Assessor Webcast on March 18, 2021.