Is Pakatan Rakyat dead? That depends on whom you ask.
With DAP, it's clear-cut: PAS' highest-decision making body, the muktamar, has approved a motion that the party cuts ties with DAP.
Since Pakatan is a DAP-PKR-PAS coalition, and should PAS want nothing to do with DAP, then Pakatan is no more.
With PAS, it's clear-cut as well. It says DAP cannot unilaterally say Pakatan is dead. Moreover, PAS’ executives have yet to decide on the muktamar motion.
With PKR however, things are a little more convoluted...