Jordan is considering diplomatic sanctions against Israel, if Jordan-based negotiations with the Palestinians continue to stall or fail, according to Israeli news source Ynetnews. Along with the election of the Muslim Brotherhood as Egypt's dominant party, Israel is facing its greatest isolation in the region since it signed peace treaties with Jordan and Egypt.

Ynetnews cites London-based al-Quds al-Arabi, which claims that Jordan's King Abdullah is pressing Israel to "make significant concessions which will allow the Palestinian leadership to justify their return to the negotiating table." If Israel refuses, it faces a potential deterioration or even break in relations with Jordan. King Abdullah would then consider strengthening its relationship with the local Muslim Brotherhood opposition and even Iran.

Israel also faces uncertainty about its relationship with Egypt, where Islamist parties including the Muslim Brotherhood took nearly 70 percent of votes in recent elections. The Muslim Brotherhood has sent conflicting signals about maintaining Egypt's long-standing peace treaty with Israel, and has shunned communications with the Jewish state. The MB, like Tunisia's El-Nahda party and Turkey's ruling Islamist elite, has also welcomed Hamas back into diplomatic circles.