Relations with Turkey sure...I'm just saying it's not exactly in the Kurds best interest to give them carte blanche by "propping" up a Kurdish state.
I know that's the word Momo used, but assuming the IS thing wasn't demonstrative (I believe the Peshmerga are trying to retake Mosul atm, so it doesn't seem that way), would a Kurdish state comprising what's presently Iraqi Kurdistan need to be propped up beyond having a strong trading partner with a port? (The fate of all landlocked nations.)
The KRG is (comparatively speaking) a functioning political actor and the region has been left to its own devices for quite some time (i.e. has been able to develop economically).
The only thing I can think of is guaranteeing its security (against Iran, possibly Iraq), but Iran really isn't in a position atm to go sabre rattling.