First of all, thank you all for your opinions.
I was thinking of no buffer, no gmshop, no dualboxing.
No buffer + no dualboxing will bring the old l2 back, making support classes the most wanted in parities, and will also help greatly in class balance. Since it will be retail buff time/slots.
No GMShop means everything is available until B grade in Giran Luxury shop "im adding b grade to it". You will have to craft S grade only since A grade is really not needed to level up, if you have b grade.
I know it sounds like a hardcore craft server but no one will notice it until they need S grade.
It will also be auto loot, auto learn skills, free class change and free subclass. The rest will be retail like.
Or you think I should change the entire plan and make it more towards pvp servers with NPCBuffer and GMShop?