I can see Triple H end the streak, so Undertaker retires, then Triple H retires as he has accomplished everything
Michael Cole beats Jerry Lawler, Lawler retires, but all the WWE superstars comes to show Lawler support and Cole quits never to come back
After Orton beats all members of the Nexus and CM Punk faces Orton alone at WM27 and loses, he disbdands the Nexus, thus making all members retire
Cena makes The Miz tap out, and Miz sees WWE measn nothing to him, his "awesome future" is somewhere else and he retires
that's 8 retirements in one night