What are possibilities of an upgrade offer on LX from GVA to JFK next week?
I am booked as UA9720 on 106 ticket stock, so maybe I should have a look on the UNITED website. I post my question here because the operating carrier is LX.

ETA - Just had a look on both the UA and LX websites and it is possible to select seats in Economy on the LX site. No sign of a Business class offer, so I might have to wait until check-in opens. How long before departure does OLCI open for flights to the USA? Just for info, I am in L-class on the TATL.
Prior to that, in true Flyertalk style, I have a flight from FRA to BRU with SN (operated by LH), then BRU to GVA with SN (operated by LX).