Hi,
I doubt about the fact EK will stop DEC.
Consider the worldwide market in the short/med/long term..
There is not only EK.
I'd rather say, EK will increase the DEC and will have no choice but to take guys with 320 or 737 ratings "only" as less and less type rated guys will be avail.
This might be reversed if the training dep would be willing and also able to emphasize the training structure.