There are rumors that altay serial production-low- will be start soon ,I think with korean engine.German firms always find an indirect solution to the problems they face to sell their products
Korea doesn't have a reliable transmission.
Funny thing is that it is reported that Turkey indeed contacted Korea for powerpack, but even the Korean government refused to guarantee the quality of their indigenous transmission, so the negotiation was stalled.
And terms that I have heard are a) Turkey has to directly import powerpack from Korea, which means no local production under license nor ToT and b) Turkey is only allowed to use Korean powerpack for their army and not allowed to re-export the engine with their tanks, which means Korea doens't want Turkey to compete against K2 Black Panther in the export market, especially in Middle East.
As far as I concern, Korean powerpack may not be ideal for Turkey, but Turkey is indeed desperate at the moment (so desperate that Dr. Demir talked about a limited production with few remaining spare parts and gave us the meaingless T0 + T18 timeline).
Even if Turkey acquires a suitable powerpack from somewhere, they have to go through all tests again, which means there is going to be more delay.