I hope that you know that Thraco-Cimmerian might just denote more like a cultural, innovation influence. What do these people share though is through the Urnfielder Culture common ancestry, the Este descends or share a common ancestry with Proto-VIllanovan, the Proto-Villanova has been noted before to share similarities with Gava and Dubovac-Zuto-Brdo/Grla-Mara. Though by all means this should not mean common Y-DNA, partial shared yes.
How i see and reflect on things is that E-V13 scretched into these culture but more inland Central Balkans to Carpathian Mountains.
Vatin/Grla-Mara/Dubovac and even perhaps Vatya and Brnjica would represent a mixed E-V13 groups with other Y-DNA, while the Gava core should represent a group explicitly carrying E-V13 haplogroup (if i am right). I am just not sure if some E-V13 was before Middle Bronze Age in Cruceni-Belegis and Vatin/Grla Mara or were the Szeremle group who were pushed from Tumulus warriors during their conquest of Pannonia and Southern Central Europe. Could be that Szeremle group who came from Tisza river were part of the story of E-V13, and the other part is the Channeled-Ware rise during Bronze to Iron Age transition who technically imposed themselves upon Tumulus and Encrusted Pottery People but also to the Szeremle/Vatin and the rest causing the domino effect all around and the so called Aegean migration. This migrations probably already started during Middle Bronze Age but they were intensified after the Gava and Tumulus clash down the Danube.
