This could push the conflict into a new phase. I can see Hamas and Izzedine al Qassam looking for more blood. Given that he was killed en route to a holyy place could bring temples onto the target list for the first time.

CNN.com - Palestinians: Hamas founder killed in airstrike - Mar 21, 2004: "CNN) -- Hamas founder and spiritual leader Sheikh Ahmed Yassin was killed in an apparent airstrike by Israeli forces Monday morning as he was being driven from a mosque, Hamas and Palestinian security sources told CNN."