OK, fine. Some variant of the TS1400 will be better than the current WZ-9 at some point in the future. But by the time that happens China will have moved on to ceramic matrix composite turboshafts.
There's no indication that the Z-10ME's engine is anything other than an improved WZ-9 (which was designed with a lot of room for improvement given projected advances in Chinese metallurgy at the time of design). The engine has an output of ~1200kW (~1650 shp), similar to the WZ-16.
Incidentally, the TS1400 designation is based on the shaft horsepower, which is around 1030kW. That's around the level of pre-2016 WZ-9s. If that's what you (not you, specifically, but Turkey boosters) want to wait until 2025 for - with no guarantee that it will be ready by then - that's up to you, but better is already available to you.
Chinese turbofans (including the WZ-9 and 1600kW WZ-10 used on the Z-20) use single-crystal turbine blades, just like Western ones do. So you needn't worry about the WZ-9 being behind any of your favourite Western engines.
I have a question: why are you looking around for all these marginal projects? If you think so highly of American and European military products, why not buy directly from them? Why are you looking for backdoors through some Turkish or South African project?