Airbus is quietly doing its thing in Mobile. Here is a view of the FAL in Mobile.
They appear to be doing production according to plan. They currently have five aircraft in production (the first is for JetBlue, the remainder for American) and another one due soon.
As for the first aircraft, it is making its way through the stations in the FAL, and it appears Airbus is on target for first delivery in the 2Q16. The Mobile FAL has 300 people working there now, and Airbus reports hiring will continue throughout 2016 (they posted another position just last Friday and some earlier last week). Airbus Americas is looking forward to first flight of a US-produced aircraft and most importantly, its first delivery.