I suspect they will extend the lease on G-VYGK until they decide on a group wide (MT/DE/DK/HQ) order, I think this has been pushed back to 2019.
Some of the Condor 767's are 20+ years old and the ex MYT A330's of MT/DK are nearing 18 years old, so a fleet renewal will be on the cards in the not to distant future.