We have to remember that the old SR was one of the world,s premier Airlines... not crossair or the new Swiss . That means any Captains or Fo,s who are deemed suitable will have been subjected to a far superior level of training than is currently common amongst middle eastern operators , it may not be a popular statement but it,s a fact .
A bit like premiere league vs. second division, as long as they leave their emotional baggage behind ,and accept that EY is not the same as the old firm they should be an asset to the company.
If expansion continues as planned then all current FO,s will get their chance , after all in SR it took at least 12 yrs of international flying before an upgrade became available and sometimes a lot longer.