Sesklo and Dimini might also be important for origin of EV13, and how it relates to Proto-IE.
While a bit outdated, there is possibly relevant info that seems to have been forgotten in this paper on greek ydna (link at bottom).
We find the highest EV13 (35%, 20/57 samples), and also the highest J2b-m241 in Sesklo/Dimini. (page 3)
This site shows a warlike people that invades violently and begins fortifications around 5000BC.
The Dimini culture overtakes the Sesklo one, and the culture they bring has Danubian parallels.
It is also where Kretschmer argued the "Pelasgian" (Indo European as he argued) language came from:
LINK: https://bmcevolbiol.biomedcentral.co...471-2148-11-69