Inu-Chan with Kag-Chan \ ^w^ /
I think even though Kikyo back to life,they still won't be together,I think they'd just being a friend more than a couple,you know they're not the 50 years ago's people anymore
That'd be easy,if Kikyo's soul back to Kag-Chan,then it'd be much more easier I think(Even though which means Kag-Chan might a little different but still it won't he too bad <---That remain me of Breath of fire's Ryu & Fou-Lu,both are same soul but separate once around 700 years,with different people to become different personality and they have to become one again ne)
