Hi @lennysunreal . After the launch of Fab, you will still have access to all of your past Megascans purchases via Quixel.com and Bridge. We will let you know before those tools are discontinued so that you can transfer the assets onto a local disk to retain access to them.
Megascans will be free on Fab under the Standard License until the end of the year. If you wish to add any Megascans to your Fab library, you will be welcome to do so. Anything you acquire during that period will remain in your Fab library and be usable under the Standard License after the promotion period ends.