It is time to create an MSYS2. Since MinGW is dragging its feet on which VCS to use I'm coming here with the project. Once the decision is made we can move the code and history to MinGW.
I have created two GIT repositories, one to track pristine Cygwin changes and the other for MSYS2. My plan is to sync the Cygwin changes to the pristine version and then to our MSYS2 version as we review the changes and how they might affect MSYS2.
Note the required tools source changes are being tracked under sub-project "MSYS2 Tools".