Quick question for the CX pro's..

Booked on CX 897 and 884 in PE (R class) for October travel. Upgraded the outbound day after booking, while waitlisted for the inbound. CX884 appears to be operated with the 77G which appears to have the lower density J cabin (40 seats vs. 53 on the 77H, per seatguru).

Wondering if the smaller J cabin reduces the likelihood of clearing the waitlist. Flight is on a Wednesday, if that matters.