THe deadline is end of 2019, but in some cases, when previous extension exires, cannot be extended extended after end of March 2019
I suppose this will give HA-reg owners time to scramble for safety elsewhere. I would not be surprised if the Hungarian register will be quite empty of privately operated planes by the time this thing gets real, if it does. Better get an export C of A while you still can. And in any case, get this information to EASA pronto.