Wouldn't make sense to do it in waves. Safer for Blizzard to go all pre-cata first to avoid people going, "Hey! Where's our update!" or as some would say, "ZOMG WTF BLIZZ!? Srs?.. No updates still? WTF! I pay for this shit and no update?" /rage quit. ((Sorry for making such an example, but that is lately how some threads have become. My apologies. As well, it hurt trying to write like that.. is that normal?))