Static IP configuration option in the settings page would be a great addition.
Second addition for me personally for networking settings would be disable SSID broadcast for AP mode or disable AP mode all together a simple checkbox would do by both modes to disable one mode or the other.
x disable station
x disable ap
if station mode is disabled then broadcast ap only
if ap mode is disabled then connect to with wifi info only
if no boxes are checked then proceed as normal
if both boxes are checked then ap can be connected to but it is hidden you will need to know SSID because it will not be broadcasted.
something along this line I feel it is a needed evolution of the interface just as I thought static IP was important.
Last if it is possible to change device id from ESP746AEF to something else this would be extremely useful.
While for the most part it may seem useless it is a natural evolution to building on basic to include these things as they are basic building blocks of networking which if easily configurable with provide a better overall user satisfaction and it would lead to less networking questions and issues I believe.
Where I buy my ESP8266 boards from... (Banggood)