Palestinians can drag on the negotiations for several more years (especially easy with Netanyahoo - who will never accept dividing Jerusalem, even if he freezes the settlements) By then Iran has a nuke and Saudi has joined the Iranian camp (only way to prevent worsening of problem in Yemen, and soon Mecca). At this point, Iran says to US - it is one state or Oil. By then, all attempts at 2-state would have failed and US will be in no position to stop Palestinians from launching a civil disobedience movement. How many police can Israel put on the street before the army starts firing? Remember Algeria.
Russia is not and will not launch infantry operations in Syria, says senior lawmaker (Reuters)
from the article: Abbas must unilaterally declare Palestinian state