If you truly want to save this server stop pretending that you are better than nost, and actually try to be better.
Most bosses hit like wet noodles.
Surgers don't charge.
Hatchers rising flames and flamestrike are ignorable mechanics.
Chromaggus is a joke of a fight since everyone has their tank los the breath.
Pathing is atrocious, our first week in bwl somebody got knocked against the roof of vaels room by a charge and managed to aggro lab packs and broodlord which proceeded to path through the roof to kill us.
AQ is actually really well done, its the only reason most of my guild even log in anymore.
Even if it feels easier than BWL its been the one bright spot on this server.
When a head dev ignores your ticket and just replies "ok" and it takes a week and messaging another gm to get a response it leaves a bitter taste in your mouth.
When the server economy is propped up by people resetting instances and being in the same spot and you do nothing about it for months,you get the economic situation you have on K1.
When you hold a X7 event and then disallow low lvl summoning alts, you gave every old guild an even bigger advantage over new guilds that drives away competitive players.
When you keep your head in the sand about other projects and sit in the echo chamber that are these forums you'll never grow.
If you want to rejuvinate pvp on K1 make the pvp system think there are at least 1000 players pvping each week so everything besides standing 1 actually gets some real progression.
Add an option to turn in marks for gold instead of honor so old rankers have more incentive to pvp.
Chero in your original post, you actually stated that many people were disappointed about nost returning when that couldn't be further from the truth. Nost was never a perfectly scripted server, but they had amazing public relations and a responsive GM and development team, and they weren't getting paid like twinstar is. Important issues were addressed in a timely fashion and not left to fester into the realm of unfix-ability.