Lets see here..
1.) Group aspect -- Such as something you might need more then one person for and be a bit tougher then the whole "Behe" pretty much towards the fact the monster heals at a large amount meaning randomly it might go from 20% to 50% and with its large amount of health you might need a white mage near handy to keep the person that has "agro" alive.. This would go handy with smaller monsters that would take only 2-3 people to take down before the big monster which would be the.. lets say 5 man? But if you really would want to jack up the party amount you could do rare monster spawns that might take 10-20 players to kill.. On the other hand Auto-Re-spawn i would like to get fixed into maybe Resurrection type, White mages being able to resurrection meaning you could make these "Elite Monsters" a bit more harder as you go meaning your white mages might have to watch a bit more, on the other hand theres no way to party really and the fact if there was a way to party someway to see party members health. -- Also "Elite Monsters" Drop more then average "Stuff" that would have to be argued over to who gets it.. there could be a rolling system put it but who knows **Shrugs**
2.) Weapon and Armor -- I feel these things need to be completely rethought, I feel there should be a massive array of what needs to be open here, everything from weapon that can only be got from monster drops to weapons that can be crafted from just normal blacksmithing to stuff maybe to be smithed in certain areas, (Maybe in areas after you kill one of the group "Elite Monsters) same for the armor, pretty much having your normal array of weapons then your elite stuff that will be harder to get.
3.) Money (Perks) -- I feel as far as perks, they are needed to play the game after a certain point, which loses quite a few players if they can't ever find a player to buy for them for something like damon or even gold. Feel that this is a disadvantage as far as players well offness.. I feel that perks should be abolished and a system of points should be brought in.. 1 USD = 100 points these points would be used to buy certain items that can only be got through this buying system. This would open the game to everyone and all that choose to buy some of these items (whatever they might be) will be able to do so when they choose to. If this is done might be able to be coded that when you make a purchase of points through, lets say paypal, the points automatically poof onto your account after the payment as been sent through. Instead of having to wait for some admin to decide to give you your perks.
4.) Drops -- All monsters need to drop a very large array of items.. everything from weapons, armors, crafting items, and so on.. This will open the aspect of farming for items in game, some people like to farm.. some don't.. But this might bring in some other players to play more.
5.) "Profession" -- Not really professions you might say but jobs such as farming and such, i think maybe there should be a chance when your digging for mining or ploughing for farming that there should be a slight chance of getting an item, on the other hand this would open it for people that like to macro which is a disadvantage and otherwise looked as bad, so in all reality might not be a good thing, but you know the idea.
6.) Traveling -- This really depends on the person, many people have asked for a alternative way to travel such as riding the mule and such, on the other hand at a certain point your run gets high enough to pretty much run sectors easily without any trouble.. So maybe a suggestion on a few things.. Run speed doesnt have that much of an effect as it does now, or maybe when you are in "battle" you actually slow down so you cant really attack something and instantly run off.. It slows you down so you cant just do like a run by attack.
If i get any other ideas ill post them.. Heh