I have sometime to fill EE profile as ECA for my wife is due and along with IELTS exam.Yeah after Feb 2019 you can work that out...
But what if the case officer decides to ask you to provide the Oman PCC after that as well, then what will you do?
Why would you wait for 2019 when you can apply for the Oman PCC now....
http://www.rop.gov.om/old/english/howdoi.asp
plus by next year because of age changes etc, your score may go down...
I don't want to go into Oman PCC hassle. Oman PCC will take time and money. Hence thinking to avoid the same as ECA and IELTS is due.