It is somewhat disappointing that they haven't provided a proper reply yet.
I can appreciate their decision to close down OC2, though I disagree with it, but at least they should provide the most updated installers and, if required, provide updates for the 777 also, directly to your account. It is not a big ask to give existing users the possibility to install the planes in the the most recent version should it be required.
Better start exporting PMDG-liveries now, if one wants to have a back-up of those, but they have to be exported one by one I understand(?). It should be possible to install the original liveries again via the 3rd party-installer.
Being an avid PMDG 747-400 sim pilot there is only P3D for now before the new 747 versions will be available (eventually). Does anyone know if historic weather and a fairly well functioning weather radar will be available in 2024?