I see staffing issues being a major issue for years to come.
I can't. The perspective of flying 777s or 380s will attract more than enough guys from everywhere. All management has to do is lower the entry-requirements, and there will be a couple of hundred more new joiners.
Look at Qatar and you see that they can treat you like horsesh!t and get away with it. They can pay you less and treat you worse, and still find somebody, without problem, to replace you.