The same deal (sending Swiss FO's as DEC) fell through at ETIHAD and will fall through at EK... Simply because those chaps still make more money as Swiss FO's than as EK Captains...
The smart and adjustable Swiss FO's who were willing to move are already working for EK (as FO's), which means most of the rest are either unwilling to leave Switzerland or unwilling to take the pay-cut, or just plain unsuitable.
I wouldn't worry about it too much...