Flight UA 907 ORD-FRA on Dec 1, 2024 (about 2 months from now) shows zero seats assigned in J on the seat map available in my booked itinerary, a handful in PE, and a decent number in Y. The booked itinerary has additional segments on either side of that flight.

Looking at just that segment in a separate search, the flight shows J9 JN9 C9 D9 Z9 ZN9 P9 PN0 PZ0 IN0 I0 O9 ON9 A0 R0 RN0 Y9 YN9 B9 M9 E9 U9 H9 HN9 Q9 V9 W9 S9 T9 L9 K9 G0 XN9 X9, and the seat map is "not currently available."

I've requested a PP upgrade, but have been put on the waitlist. Should I be concerned?