Well they started using 200LRs on DEL-SFO-DEL and LOADS are REAL GREAT.
Unlike EK, other commercial airlines carry more HUMANS than DRY FRUITS, so small aft cargo door is not a major issue.
They didn't throw away the AUX tanks and even if they removed, they are skilled enough to put it back.
Of course EK can operate 200LRs to anywhere, just keep PLF lower than 30%, which is not out of the norm.