We all know that Kurama YIN chakra was sealed along time ago !
The words of Minato could be interpreted in two ways because he says " I can permanently seal half the fox power along with my self "
1) This could mean either Kurama YIN chakra was seald in Minato and then he was seald in the Death God
2) This could mean both where seald separately in the Death God
I belive in the first interpretation because we have a picture of minato's soul "melded" with kurama soul/chakra
Yes that head of Kurama on Minato's shoulder
We also see in the new chapter that only 5 souls where realsed from the Death God and no Kurama YIN chakra !
So this my explination that Kurama's YIN chakra is now in Edo Minato !