1) About raids sure, moreover they could add some daily instances either solo or group with good exp and adena rewards
2) Not needed, it will only increase prices since the actual price for 1billion adena/ $ will increase accordingly. A better solution would be to remove the consumable costs, specifically soulshots either by removing them altogether and increase base weapon damage or by adding them to the daily missions.
3) What they should do is make spoilers spoil random crafting herbs and for warsmiths to have lower costs and higher chances in random crafting depending on their stats/level.
4) This is something that needs to be toned down, there are way too many OP P2W items available ingame right now, a briliant example is this new pendant.
5) Quests wont work well with how the game is currently configured, its all around auto-hunting and multi-boxing. The only way this could make any sense would be to make the quest rewards be substantial so someone will stop their auto-hunt loop for 1 hour and make it worth it.
6) I dont understand why there arent other castles available, its one of the few fun things left in the game. Having just 1 castle is boring.
7) There are some big topics discussing this in the forum, to sum it up the whole way PvP works now is very wrong and promotes toxic behaviour.
8) Subclasses are good, add more variety for people at level 85.
9) Hunting areas need a revamp, they make absolutely no sense atm. The only areas that make sense are Elemental Zones which have no drops.
10) Nostalgia? For me it was the auto-hunt as it allows me to make competitive progress without playing all day cause of real life/work.
11) New people dont join Lineage 2, its only old people with money