One problem we've seen with warlocks heading in to Wrath of the Lich King is the lack of New Stuff: ideas which would transform warlock playstyle and make warlocks more fun, like the improvements to warrior tanking or the pet talent trees for hunters. It's still too early to tell whether the lack of New Stuff for Warlocks is due to diabolical brain damage suffered by the developers as part of an infernal plot or to a simple lack of creativity and inspiration on their part.
