Housing, yes It has been talked about but I would like to have a garden so I can grow my mats and let me place trophies and books i find around the world, hell even make woodworking more than shields and bow, let em make chairs, tables ect very much like EQ2 so you can really have fun making your home.
A nice wardrobe like LOTRO has, you can mix and max your different armour without sacrifice stats that includes none stat items also so we all can make a toon we like without look like the next farmer Joe.
Rare boss spawn, this are not a static spawn that spawn every 15min and people are lining up to kill it, It's a boss spawn that spawns random in that zone that drops rare items such as one time recipe for a armour or a weapon and rare weapons and armour.
Mini games such as dice, card games and alike and let the players play against one another, not against NPC.

Just a few things I like to see in the game.