The battle in Kobane was nothing if not dramatic. Kurdish fighters affiliated with the PKK appeared on the verge of defeat but rallied to push ISIS out of the town on the Syrian-Turkish border.
See Kurdish official: ISIS and their flag gone from Kobane http://rudaw.net/english/middleeast/syria/17102014
The sudden reversal of fortune has made the PKK heroes for the moment. Not surprisingly, this will not make Turkey happy. Reportedly, one of the reasons they sat back while ISIS advanced on the town was they hoped a PKK defeat would undermine the group’s popularity. It will also complicate politics in Kurdish Iraq. The PKK are now more popular there than they had been in the past, which may upset the political balance maintained between the two main Kurdish factions in the region, the PUK and KDP. It may also complicate the Kurdish Regional Government’s (KRG) relationship with Turkey. The KRG had cultivated close relations with Ankara as a trading partner and in the hope that they would be eventually be willing to accept increased KRG sovereignty. If the PKK becomes a player in KRG politics, or if the KRG becomes more supportive of PKK political demands, that relationship will likely suffer.
See:
Kurdish rivals unite to fight Islamic State
http://www.aljazeera.com/news/middleeast/2014/08/iraq-turkey-kurds-fight-islamic-state-201481581133776796.html
After repelling ISIL, PKK fighters are the new heroes of Kurdistan
http://america.aljazeera.com/articles/2014/10/17/pkk-s-rise-in-iraqikurdistan.html
IR Theory & Practice 