Title says it all. 1st I think a stealth class is in order that would just do it for me alone.
2nd is bheroic instances where you get awsome loot. Wich brings me to my third point
Gear sets would be sexy. Start out simple like 2 pieces of set grants you 10 dex, 3 pieces 2% crit, and 4 effects one of your skills like makes the falcon scream thing last longer or somthing. Think that would be sick. Unless they alredy exsist in game. I wouldn't know cause it still hasn't come out for android.