I am not sure if this has been suggested already or not and I didn't see it in your list of upcoming additions so I thought it might be a good idea to approach the subject.

Now I know that as of now there are some members that are currently acting as a "bank" type feature for players who want to save their gold or Diamonds. However; this is not really a stressless way of saving for most people, especially those who are new or don't know many people.

It would be nice if there was a Bank feature in with the trades or Shops that players could use to make deposits of gold or diamonds. Similar to what I've seen on other games that I play (ie: FR)

while it would be nice you could just set a rule for you self like I have done. "Dont go under x amount of gold". My rule is never to go under 1 mil.

I usually set a price range, but I keep pushing it. It would be nice if there was a bank in which we could keep our coins and diamonds safe from ourselves. I try to save up for things, but it gets hard because I can't separate the ones I'm saving up from the ones I'm happy to spend.
If we could have a bank account in which we could keep our coins and diamonds in separate folders for different things, ex: Feeding pets, Artwork, Stables and tabs... etc.
I think that a bank would be a great idea!