According to mr.Davutoglu foregin minister of turkey after the start of uprising in syria it was 6months or less for Assad to go down , but it turned up something else , Turkish authorities miscalculated that Syria was the birth place of Ba'ath party and it's nationalism brought some of best intellegence agencies in region , it was Syrian intellegence that Created most of terrorist groups in region witch operated in Iraq , Turkey like the one in it's own country who is now seeming to be fighting against Assad but that is just trying to justify Assad oppression on the northern and eastern Syria.
And now with nearly 1 million syrians in turkish territory as refugees it takes a lot of effort for turkey to maintain the situation inside it's borders.
Now there is ISIS mainstream , and it caught Iraqi Government in surprise that it cant give reflex to the situation , Turkey now is benefiting from the ISIS show up in the syria and iraq but just in short term. and maybe in very near future we can see new map on middle east and the new maps will keep showing off till 2020 with it's ending KSA.