I still think that is a long way off. WestJet would presumably have to make a number of improvements (add business class, an aligned/integrated FFP program-which they look to be doing, free lounge access (rather than paid), elite status, etc) which could take quite a bit of time and money. I'm not saying it couldn't (or won't happen), but it will definitely take some time, unless oneWorld decides to do some sort of affiliate/associate member program with WestJet (like how it treats the subsidiary airlines of its main members - AE, LANArgentina, etc where the rules are less stringent.).