Yesterday while wandering through Disneyland I came upon a new bridge in New Orleans Square. It spanned the walkway near the restrooms and connected the second floor near the Club 33 Jazz Lounge and the stairs across from the restroom above the Mint Julep Stand across to the train platform next to the exit near the wheelchair ramp. It looks to be temporary based on the supports but that it will be around for a while since they spent the effort to add a themed railing. My best guess is it will be the cast member walkway/access while the railroad is closed next year for Star Wars construction.
Here is the view from the New Orleans Train Station.
From the reverse side (looking toward the Train Station).
A closer view of the connection point.
From onboard the train you really cannot see too much.
For more pictures from this trip and others visit our Disneyland Resort Picture Section