Thanks, now its the great time to be active again with all of these samples.
I had most difficulties locating exactly that Hungarian study J2b samples, but I just took a look at my estimates for IA J2b's location and they are Bő and Bük, right next to Gór, so I did pretty well, I wasn't able to tell exactly as there are several different sites there. So I can confirm that the IA J2b sample from the upcoming Hungarian study should be actually this sample as the datation is also very similar 350 BC per their diagram, and here 391-208 calBCE.
As for Mokrin, I know that Serbian Mokrin auDNA samples exist in that study but the Maros site seems very near Szeged, not in Serbia. Also there is an early Maros site and this is the Hódmezővásárhely—Gorzsa-Cukor-tanya, while the 1900-2000 BC site seems to be in Szoreg.
Early Maros site doesn't seem to have Y-DNA but it has something like 90 %+ Yamnaya profile quite different from the rest of Maros. I also identified this site not just by location but also by searching for sites in archeological records, and there is an early Maros site, methodology I used for the others.
And right here in this study we have a new Maros sample that is R-CTS7556+ maybe this one has some downstream positive SNP's, and he is fro mthe site of Čoka. Also there seems to be another R-CTS7556+ sample, in addition to oneI-L161 sample from Mokrin but they were first published here.
It seems going by the early Maros site that some Yamnaya group settled there and assimilated J2b and other locals who indeed might fit into that Suvorovo settlement (I'll have to learn more about that to say more).
Bar the IR2 Mezocsat culture sample, and some earlier Hungarian BB, Nagyrev Y-DNA finds almost all others seem to be new samples.
Also logically, I do not see any R-Z2103 colleagues of that J2b sample in terms of age and auDNA, and considering their dominance there should be at least some. It would be really weird if they choose for their Y-DNA diagram just the J2b sample out of all other Maros samples. This speaks in favor of a new Szeged/Szoreg EBA J2b sample. Maybe that was the hub for J2b within Maros culture. If there is just one Maros find from Szeged and it is J2b, maybe more testing reveals J2b dominance.
Not sure when this study will be out, I think surely next year.