I couldn't find (with search) in the faq's , but if it is indeed already
suggested or mentioned i do apologize...
I think it would be great to implement a birthday (character create day) ,
Like in Guild Wars 2 , (and probably other games) but i know it from GW2.
Basicly , each year just like in RL , your character has a birthday, and in gw2 for example,
you then get some minor rewards, in forms of consumable temporarly buffs or boosters and/or currency , items , etc..... (with maybe each year increasing the characters reward with the birthday (create day).
Daily login rewards and daily tasks that gives you a minor reward when completing them or some of them, would also be a great implementation.