66% enchant rates with blessed/simple scrolls
Armors upgrade (vesper 4 adenas, u upgrade vesper to noble, hen to vorpal and elegia, same with weapons:vesper ->mid s84->top s84, different farm for SA)
Enchants from spoil/rb
Hugle place for lot of raids with different drops( some of them bews some of them beas, jewels, att crystals), like varka or ketra with 10+rb inside.
Make 5 - 7 siegeable forts with some better stuff to buy or instance where u can enter once per day, but u can kill custom boss that are in custom place (like i mention varka or ketra), that will lead to more pvp near forts
Raid drop sould be dropped on ground, but pick it could only pt that did most of dmg to rb, so ppl can't last hit rb or zerg some random ppl pt and pick drops.
Dunno whats more, if i get some ideas i will write.
On dex x4 when it was hellbound, we was camping zaken with like 200+ ppl, and i pked over 150+ zaken chars from enemy ally :D the fun was to clean all that karma.
Those immortal stuff is easy to get (vorpal is even better than immortal), but farm istina, spezion, fortuna with vorpal gonna be pain in ass :D And if we skip immortal stuff, it will be hard as hell to farm octavis, epic spezion and other 95+ instances with vorpal stuff, and at x25 u can hit 95 in almost no time, so i think ppl won't stay at GoG to drop some apo weapons and stuff while they get low exp from mobs. Exept u can get full ISS buffs from scheme buffer (3lvl sonatas), then maybe it would be worth.
Scheme buffer with ISS buffs? And what about twilight armors? Do ppl have farm them reital way? I don't talk about seraph or eternal, cause those are easy as hell to make even on reital servers.