I would also like to go there next September so I have been checking availability in anticipation of the 330 day window opening soon for business class. I have found that United has good availability, with the best route involving US Airways for the earliest morning arrival. The all United/Lufthansa routing for my needs has a 50 minute connection in Frankfurt but there are multiple flights per day if the connection is missed. I have not found good availability on American or good routings not involving the BA surcharges. If the best routiings and availability includes US Airways I guess the worry is schedule changes after US Airways leaves Star Alliance.