If the pilots leave or take alternate employment, they will certainly lose ALL that is owed to them, and that is why I think a lot of them are hanging on.
I understand that they are in behind by US1300 per month X 7 ie just over US$9000 in total per pilot. Not worth hanging around for given their earning potential once they gain employment. Fly Dubai are offering US14000 per month tax free for B737 Captains. Plenty of jobs in the 8-12 000 range
Garuda Indonesia are looking for B737 drivers, unfortunately they want 300 series onwards. Maybe stretch the point if they don't have enough applicants or pay for your own conversion course ?
There was a company in Bahrain wanting B732 pilots a few weeks back if anyone remembers the name.
The pilots had been reasonable but with over six months on less than half pay and no sign of when it would be back to normal it was time to pull the plug.
Now Mugape will have to hire in foreign aircraft at greater cost than it would have been to run the national airline.
Similar with the farmers, the country was self sufficient and now has to rely on foreign supplies to keep going.