Unfortunately deep subclades haven't been tested for all J and T samples. What is sure is that there were three T2c among the 102 LBK samples.
J1+T people might have carried some H subclades too, but I haven't been able to distinguish those linked to G2a or E-M34 from those linked to J1 and T. Overall, Near Eastern farmers must have carried
H2, H5, H7, H13 and H20, but most are probably linked to G2a, or perhaps even to the Balkanic E-V13 and J2b. Among them only H5 and H7 were found in LBK-related cultures, though none during the LBK period itself. The only H subclade clearly identified in LBK samples was the extremely rare H46b.
It's not easy to sort out the LBK mtDNA lineages as they are already a blend of three distinct populations:
1) Near Eastern farmers (linked to Y-DNA E-M34, G2a, J1 and T)
2) Assimilated Mesolithic West Anatolian, Greek & Balkanic hunter-gatherers (linked to Y-DNA E-V13 and J2b)
3) Assimilated Mesolithic Central European hunter-gatherers (linked to Y-DNA C, F, I and R1a)
I have summarised the respective maternal lineages of these three populations
here.
How much Near Eastern vs Balkanic ancestry ?
Overall I estimate that approximately
45-50% of mtDNA from the LBK culture came directly from the Near East and was mostly associated with Y-haplogroups J1 and T, and to a lower extent also G2a(xG2a3b1) and E-M34.
About 50% of the LBK mtDNA comes from the Mesolithic Balkans or western Anatolia, and barely 5% could be of other Mesolithic European origin (haplogroups H1 and U5). Interestingly the proportion of Mesolithic European lineages slowly but progressively rises over time, showing that more intermarriages took place between farmers and hunter-gatherers.
In summary, LBK men belonged essentially to E-M34, E-V13, G2a, J1, J2b and T. I expect 50% to 70% of J1 + T + G2a + E-M34, and and 30% to 50% of E-V13 + J2b. It is not clear yet whether G2a should be considered of Southwest Asian origin like E-M34, J1 and T, or East Mediterranean like E-V13 and J2b. Actually, if G2a originated in Anatolia, the original admixture of its people would be more Caucasian-like or West Asian-like, depending on what admixtures are used.
UPDATE: I have created a map of the LBK culture.