To be honest, as a HK-er it has virtually no impact for me for JL leaving, except I will lost my free domestic sector for my next award booking (I can replace it with ANA Visit Japan pass/ Japan Rail Pass) . The one having serious pain is AA / BA
I would be interested if CX will try grabbing CA to join OW consider their cross share holding and joint venture routes. I don't see much chance of CX jumping ship to *A though with the presence of SQ