If you mean the 3 767s coming from DHK then you are right and wrong.
Initially 3 a/c will start operating from January, then it will be 2 for the rest of the year, BUT they will still be operated by DHK and DHK crews.
Well they have interviewed and hired a few more pilots for DHL Bahrain to operate those very 767s. Pilots were told they would be Bahrain based flying the 767 from January 2020 onwards
So they are either operating those 767s or getting an additional 3 on top of that. The pilots in the interview were told they still had to source and purchase the 767s which is why it was only a January start date.
DHL Bahrain are definitely expanding and have hired the crews for the expansion.