Which Middle Eastern Country will be host to the next terrorist attack?

Over the past weeks terrorist bombings and attacks have claimed many lives over swathes of the Middle East. Recently countries such as Syria which have been less prone to terrorist incidents have begun to be targeted. Some analysts point to the massive influx of Iraqi refugees into states such as Jordan and Syria as cause for the upsurge in activity. In the Syrian attack, the car bomb was close to the 'Sidi Kadad Intelligence Headquarters, which houses a special unit responsible for Palestinian security and intelligence matters.' which wouldn't usually be a target for terrorism

On the other hand Yemen and Lebanon which are prone to terrorist incidents have had continuing attacks due to long standing conflicts. Other countries such as Qatar, The UAE and Oman have been rather immune to terrorist activity. One of the fundamental reasons is probably due to the wealth influx in these states as well as a heavy clamp down on extremism (at least visibly).

So where will the next attack occur?