Yes, a wipe is sorely needed. The amount of "dead" accounts and characters in the db at the moment is unreal, plus the game is getting very unbalanced stats-wise at the moment. Not just that, but if what I hear is correct, then the next version of the game will format the db in a slightly different way, and the overall alterations coming up are probably going to be huge anyway.
The only thing I would request is Reserving of Established Guildnames. To qualify, the guild should have been active for more than 3 months, and still be completely active ingame, with the leader having been recorded as logging in at least twice in the month prior to the wipe. After the wipe, the Guildname is then put on "reserve" for 3 months, so if the leader returns and re-creates their guild, they can have the name back without arguments. Also, should the guildleader choose not to return, but they know former members wish to re-establish the guild, they can contact a GM and have them handover leadership status to whomever is suitable.
It was already my plan to start a new char even if a wipe wasn't done, deleting my old chars, so I could start afresh with the new quest system, as I like to think that I am primarily a quester.