A bit of life to it. Most folk that play MMO's have played those one that have a lot of NPC's around just stood there, doing nothing. We don't demand complicated scripting giving them detailed lives but a daily schedule is great. People walking around, working or just milling about. Anything is better than a million and one NPC's just stood around. Housing. Again, not expecting miracles. We don't all demand Wildstar levels of housing (although that would be great, it does have the best housing system i've seen). What would be nice would be crafting furniture and decorations. Seen a lot of games turn housing items into random drops or cash shop sales and it leaves a lot of folk with bare plots. NPC's. I'm going to use SWTOR for this because it's the biggest culprit. Give them a little bit of individuality. I don't mean a unique look for every one, that would be a ton of work but change things up a bit. Change hair colour or style on a few that look too similar, things like that. Go to Coruscant in SWTOR and you'll see an army of bald moustache men. Try and avoid everyone looking like clones. Armour. Most of us don't mind colour swaps in armour as we level. Having everything look unique would be a nightmare. Just don't go too overboard on end game armour, especially in regard to shoulder pads. They don't need to be the size of a person. Small shoulder pads are good. Clipping. This is a pet hate of mine and it has stopped me wearing a lot of armour in games. Stuff that clips is an eye sore. Cloaks are the biggest offender. Weapons clip through them and they clip through mounts, legs and arms. Say no to cloaks.