Somewhat true, I think
True, this change will come in at some stage and will require some additional pilots (source: one of the Training Managers I spoke to recently).
However, it won't change the hours you log in your logbook (yes, EK pilots log hours in the bunk, like most long haul airlines). The difference is Emirates doesn't count bunk hours for the augmenting (cruise) Capt and F/O towards flight & duty limits. That's it. They do for flight experience records.
So it won't affect your hours for upgrade, or for another job, or your pay (yes you get paid for all bunk hours too). If you're not sure, have a look at your flying records on the portal and see how many hours you have according to the company.
More pilots will be required as the 900/year limit will be broken by some ULR regulars (but that could well go to 1000/year with the change, I hear), plus a few rostering complications, but not so big a deal really.