Conversation so far:
Is the death of the Rev and nightmare the name of an Avenged Sevenfold album?
December 28, 2009, Avenged Sevenfold drummer James The Rev Sullivan was found dead at his home at age 28. The album Nightmare was finally released worldwide on July 27, 2010.

Question: Tell me more about what happened between 2009-2011?
Self-contained rewrite: Tell me more about what happened to Avenged Sevenfold between 2009-2011 besides drummer James The Rev having been found dead at his home?