this is ridiculous speculation, about what will happen in lebanon. Syria is the one who is arming hizbolla, and being an ally of Iran. If a democratic syria or several syrias arise, they will stop supplying hizbolla, and will sever heir relations with iran. And the revolution will then spread to iran.
Mexico: Death toll 27 after truck hits religious procession (AP)
from the article: Assad's fall could deliver Lebanon to Iran and Hezbollah