There are three things that will probably stop Airbus from folding up ..
1. They have a good range of smaller aircraft, that are still selling well .. and are well accepted by customers. Operating costs of the Airbus appear to be lower than the equivalent Boeing. Whether this can continue, is a matter of conjecture, of course.
2. Many European Govts have a very large financial and pride investment in Airbus. They aren't going to back away from that, anytime soon .. even if it does mean tipping another few billion in, to get Airbus settled, and back on track.
3. The 380 is flying .. potential customers can see that it's a goer. The problems with wiring are bound to be settled in due course. It's not like the 380 is a pie-in-the-sky dream, that billions are disappearing into, like a black hole, with nothing to show for the $$ spent.
Boeing are quite convinced that Airbus are still a major threat, and will pose a major threat in the foreseeable future.
This point has been made by one of Boeings chiefs in the last couple of weeks. They do not see Airbus going under, anytime soon.
The biggest threat to Airbus .. is customers getting tetchy over delays and more delays, and cancelling orders.
If a major airline cancels a big order, it will possibly send Airbus into a serious tailspin.
You can bet your bottom $, that Airbus senior execs will .. right this very minute, and for many months to come .. be applying soothing words, and comforting moves .. such as major $$ compensation to those airlines that are most at risk of cancelling .. to keep the orders in the pipeline.