Originally Posted by
RobOnLI
You're still a week away from the flight. United is not going to upgrade anyone with just a few p.s. (business) seats available and it sounds like no one has cancelled/changed their reservation that already had a seat assignment in PP.
DO NOT worry. You will be sitting in PP or p.s./business on this flight for the reasons already explained by other posters above. You just may need to wait until the airport to get your seat assignment.
-RM
If the OP doesn't have UA or *A status, the chances that he/she will get an OPUP are small. UA will probably pick someone else to move up to business class and give that person's seat to the OP.