This is in the email content which I received today. It made no mention of restricted SOs. My banked SOs were to have expired in 2020 and they were returned to me as unrestricted banked SOs with 2021 expiration.
"Dear Owner,
It’s time to find your happy place. Vacations are an essential part of a fulfilling life. And now, you’ll have more time to plan your next getaway. The expiration date of your Banked StarOptions®, which were placed into your account in connection with a reservation canceled as a result of the unprecedented circumstances surrounding the Novel Coronavirus (COVID-19), has been extended from December 31, 2021, to December 31, 2022.
This extension of the expiration date has been automatically applied to your applicable Banked StarOptions and no action is required by you to extend.
Visit your Owner Dashboard to explore availability and reserve your next escape. And because vacations mean so much more now, it's nice to know your happy place includes
measures for a healthy stay and the reassurance of Marriott’s Commitment to Clean."