I'd love to see an African airline join. ET would be ideal but since it looks like its going to Star we may be stuck with waiting for Arik to expand or to poach ET. And an Indian airline like Jet would be a great addition.
But thinking a little closer to home what do folks think about Oneworld going after Porter (PD)? Its a top quality airline and is growing. Or does the cozying up between WestJet and AA/BA/CX nix any thought of Porter?
Porter has a great hub at YTZ and already fly to Boston, Chicago and NYC. Granted they would likely have to move from MDW to ORD. And it would be tough for them to move into LGA but AA has 12 nonstops weekdays LGA-YYZ and three JFK-YYZ. So in theory AA and PD could work out a deal. With AC threatening to pry its way into YTZ PD might welcome an alliance with AA/OW.