OneWorld still needs to grow IMO.
There are 'good quality' airlines out there who are still single. Air Astana for example is interested in OW, Qatar Airways (YES!), Etihad, Emirates, Gulf Air (also interested in OW), Royal Brunei, Royal Nepal, Belavia etc.
Pakistan International want to join star. My relatives fly MAN-JFK with them cause their cheap but I suspect this will be another AI style saga.