Am interested in your view...
PKK attacks in Turkey is creating a situation in which it is almost guaranteed that the Turks will enter Kurdistan in hot pursuit.
The establishment Kurds will probably not be able to get PKK under control, I suspect the US doesn't want to deal with them either. The easiest solution is for the Turks to do it, in an incursion that is strictly limited in scope, and that both the US and the other Kurds will not oppose it.
The problem is the appearance of coordination between Turkey and Iran. If Iran crosses the border, the US will no doubt respond to stop them, and if Turkey advances beyond PKK's area the US would be forced to respond, and the result will not be pretty.
Turks, US, and Iraqi Kurds need to be talking right now, to make sure everyone knows what everyone else is doing. If Turks cross over in hot pursuit, they must know pretty explicitly where the "trip" line is, if they want to avoid triggering a war with both the US and the Kurds. I would expect all this is being handled below the table.