Hi guys, I am on.the waitlist to have my PE, R upgrade to biz. My ticket is not issued yet because I 'd like to make sure that the upgrade is confirmed; otherwise i'd buy the PE standard. Does anyone can help to see my.chances or any suggestion on to wait or not to wait. I checked the flight and not many seat assigned in the biz class. My itin is as follows:

apr 7th, mci-lax-hkg. CX 885, So it would be only lax to hkg leg is upgradable.
apr 26th, hkg-ord-mci, cx806

Thanks a lot of the help!!