Well, Im just going to post this anyways :p I'm not telling you what to do.. im just saying some things that would be nice to be done. Hope you understand!!!
Well, obviously..
-The lagging and the random dcing.
-The bank..fix it to where you can move stuff around, able to do "x" amount, tabs maybe?
-Trading, "x" amount
I'm sure you hear plenty about those ^
There's also just some little things...
-Mage system
-Switching (make it have more delays)
-Ranging (range never hits) and d bolts e max hits
-Add more items and more things you could wear/use
-Melee system lmao -_-
-Clan chat
There's alot more, just dont feel like typing

but once again, im not telling you what to do or telling you how run your server.