[unknown]

Good ideas for classic (IMO) if the hit detection returns to that of normal graal:

Challenging quests with a good story line.
Fun events (that players want)
An economy based on tickets/gralats/npcs
Bring back some old NPCs and make some new ones!
Make a trading system to trade items, money/gralats, easier.
I guess develop whatever you're supposedly already in the middle of developing...

IMO, 5-7 years should have been long enough to develop what classic needed. Hit Detection should be priority 1.

Unholy Nation was the worst server I had ever seen, and its been through so many different staffers, yet it still developed into a fully functioning world. I think you're just limiting yourselves.