If they increased adena rates to decent amount, accordingly increase Special Crafting, L2 coin shop prices and other endgames specific items prices. Then grind would be more fun and payout would be something you see/feel and worth doing. At this point there is nothing to do here, you can say PvP, but you can do it every single Lineage2 server private or retail.
If they increased adena let let people do enchanting like in PvP players then money would go out of market at high rates. Grind for day, buy enchants - fail a lot, burn gear - buy new gear. And then you can sell useful items in L2 shop.
At the moment you grind A LOT - get money a little, spend half of money in potions/spirit ores. Grind again get - back money you spend on potions/ores and a little above that and that's it. There is NOTHING to do between grind and restock for soulshots/potions/ores. Nothing to engage in. Do 10min of daily dungeon, wow that's pretty much no different then mob grind in hunting grounds.
OP mentioned that servers will go LIGHT, i think they will go light faster + if game would not allow boxes then then they would be light pretty much already. Only thing "fast" in this server are how people leave server.