Some RJ FOs looking to make the jump don't have the 4000TT Emirates requires. To me it doesn't seem like a bad idea to go FlyDubai for a couple years, make ALOT more money than sitting right seat in a RJ, then make the jump to Emirates. Might even upgrade while you're at it
To the original poster, while I don't know any of them personally, I've heard couple ASA FOs are making the jump over there