What is more likely to be happen is this:
Qatar gives up its slot for 12 Tranche 4 EF to Turkey and leases a couple of its Tranche 3A for training purposes until the first Tranche 4 EF meant for TurAF arrive.
Qatar has with the F-15QA, Rafale and EF already an formidable enough Air Force for its size. Delaying the arrival of the last 12 Tranche 4 EF won't hurt them.
This way TurAF can start training and can already get its own EF way earlier.
There is a good reason the Air Force wants Tranche 4 and up (Tranche 4+/Tranche 5).
These include the Mk2 Radar, possible LAD and Striker II HMD as well as other improvements.
Would be nice to actually get some actual info on this too. We still don't even know what the supposed package will entail as well as how many fighters we will order in the first place.