According to this update the format of the DTT in Turkey is set to be DVB-T2 HEVC. It was declared as to be DVB-T2 MPEG4, in 2013.
So with the latest update of the sub-act, Turkey is going to be the first country in Europe to have a DVB-T2 HEVC network.
Some argue that to choose HEVC, rather than MPEG4 is a wrong decision, as the prices of the receivers with HEVC are still higher, comparing with the devices with MPEG4. Actually, this statement was true in 2014, but I believe it is not valid anymore. The consumer electronics equipment prices decrease dramatically. Nowadays one can easily find the UHDTVs in any market, so it will not be that hard to find DVB-T2 with HEVC.
Also, Korea, the land of Samsung & LG, has shown that it is possible to send UHD over DTT. So, I believe Samsung & LG have many models with DVB-T2 HEVC TV sets ready. To be honest I did not check their websites or the retail market in Turkey.
To read the details of this important update of DTT with DVB-T2 HEVC, I would recommend you to look my blog in Turkish. You can read the details with google translate.