Epilogue mid-high grade..BUT:
It should have A LOT and i rlly mean A LOT of custom items.
ok i know it will be unbalance with new and old players but u can't change that!
Imo u should focus on a balance between old players vs old players and newbies vs newbies (in items ofc).
and if u have a balance between theese 2 category's and with all classes enough good to PvP/PvE like all the others imo u will ressurect L2 itself..cuz now the only thing u see in all servers is: big ++,only Vesper(VERY UNBALANCING) and 3 subs max with certification.
In normal servers with normal features the most OP classes are the heavy ones beacuse of the big enchant.when u have a Vesper Heavy Set +25 on a tank..this tank will be invincible!have a Kamael with +25 Vesper Set and u will loose vs a tank wep +0!
So imo the best thing to think about is how to make all classes worthly to play..and nerfing the Natural OP ones like the Heavy Classes.