i googled if emirates will rehire redundant crew just to see if any websites or forums had info... and saw this :) from july 2020 after first rounds of redundancy

"Meanwhile, Clark said, his airline is working up mechanisms to expedite the rehiring process for laid off workers, whenever travel rebounds enough to make that practicable. "If things pick up again sooner rather than later," he said, "we will bring them back so quickly their feet won't touch the ground."

there is a rumor on EK redundant that they are calling FG1 to rejoin as GR1 don’t know if that is true or not

I keep hearing it for the past 6months
Hopefully this time it’s true !!