When your bank hasn't had any TLC in a long time, organising your bank can be a daunting and time consuming task and I would love to see some QoL improvements to simplify this.
My suggestion would be to introduce methods of sorting and organizing your bank automatically, by item classification, alphabetical and value to allow for quick and easy bank management. As well as introducing some basic templates for bank tabs and place holders, potentially even allowing templates to be created and shared by players.
This would drastically cut down on the amount of time spent by players organising and sifting through their bank and make for a much more user friendly experience.