Taking some time to type an opinion that maybe you would consider seriously. After playing here since 2012 I love how stable this server is and your staff's commitment to its development.
That being said, I really feel like this server would be awesome if we did a mass reset and deleted all chars. Too many people are decked in Naxx gear that ruins entry level experience for new people because it's so easy to get carried here and pvp is impossible in AH gear.
I would advertise it to be released with the new core and I would make the following fixes before doing so:
1) Fix Dire Maul (Pylons)
2) Fix Zul Gurub (Hakkar & his Sons + Priests)
3) Tweak LBRS Firebrand Invoker room (mass chain pulls)
4) Tweak UBRS room before Beast (mass chain pulls)
5) Tweak Scholo plague room under bridge (mass chain pulls)
6) Add all BG que people at Org/IF banks to increase population in que
7) Take a look at Fankriss difficulty

9) Fix incorrect buff times (ie; weapon buffs)
9) Get rid of cross faction AH and high deposit costs
I could probably list more and I'm sure a lot of people would cry if their legendaries and hard work got deleted, but there really is no point to standing around in org and noone really wants to buy accounts here so I think people would cry at first but would love to re-experience starting from scratch again. Maybe something could be worked out to allow people to reserve their names and maybe get some starting gold if they had a legendary or r14 gear.
Anyways, just my two cents. =)