American Airlines and British Airways went live with systemwide improvements. British Airways Executive Club Gold members will receive two equivalent upgrade that can be used for travel on American Airlines.
We never got to see the new developments because this happened in the middle of the challenge. Let's look at it now.
It is possible to upgrade the entire itinerary to business with a systemwide upgrade if you book an AA ticket to Europe in economy with the trans-Atlantic portion on AA metal. If the segment is on BA with a domestic segment on AA, then the segment could only be upgraded to premium economy from economy.
The new agreement is an improvement over the old one. We hadn't seen anything actually come to fruition after American and British Airways promised further integration for elites.
It's an improvement that leaves something to be desired. I would like to see more flexibility in classes and routes. If you don't have the option to waitlist, it's very difficult to actually use your upgrade. It's odd that American requires that one segment be both marketed and operated by Amercan, which could cause issues for elites in US gateways like NYC and Chicago that don't have a domestic connection involved. I would like to be able to use the upgrade that we get on BA as well.
The new upgrade reciprocity is better than kicking in the pants and could be useful to both AA and BA elites.