Well nobody can predict (yet) how this will play out a year from now. But I very much doubt it will be business as usual.
Even if the supply is back in at a flip of a coin , the demand might not be there anymore. If the web-based meeting systems works well , and environment/climate change continues to become a major issue, it might take a while for the passengers to come back to fill airplanes again .
Not to mention a likely economic recession if this thing last more than a few months ..
Learning a new trade for young F/Os is not a bad idea., would it be only to bridge the gap until or if it picks up again....
But OK, just saying, ..See you back here in 2-3 months ..