I've been playing before missions were introduced, and the Minimap hasn't changed much.
Here is a list of improvements:

- Minimap Options -
A new section in which it is made for the minimap. Some things like toggle some elements, quality and size.

- Tag System -
Tags! Tags for friends, guildies or knights you just want to tag.
Tagged knights would have letters in there dots ( No, no. Example no es here). Guildies will have G's in their dots with the guild chat color (this can be changed). Friends' cursors will have the an F in the dot, has the /tell color (this can also be changed).

The best possible way on how to tag players is clicking the player and there would be a new option below 'Ignore', saying 'Tag', but these tags would only be the color of their personal color.
Another way would be to type "/tag [player] [color | color code]
Tagged players will have T's in their dots.

- Ignored -
Any ignored knights will not show up in the minimap. This can be toggled in the options.

- Tags for Monsters -
Simple. Nothing more I can explain.
There won't be any individual dots for monsters. There dots would be of their family symbol. Say I'm fighting some Wolvers, then there would be a crap-ton of beast symbols on the map.
Take this as a (very bad) sample.

- Danger! -
I sometimes go down the elevator without knowing that the next level would be very dangerous. And I end up wasting my energy.
The solution to this is to have a gate (two-way) to where the elevator is. Upon entering the gate, the danger level on the minimap would change to the danger level on the next floor.

- Smaller Maps -
There should be an option changing the size of minimap. Options like smaller, small, normal, large, larger, window size or just plain disabled (the buttons for the arsenal, loadouts and character would still be there though)

- Quality! -
The map is plain and has no edges. So basically:
Low and High

Since this is only for the minimap and nothing else, no lag.

Thanks for reading. If you have anymore suggestions post it here.