An interesting tidbit in the Rise of Kunark announcement

[Othesus]

Rise of Kunark, the fourth expansion, was announced at Allakhazam tonight. One interesting UI feature mentioned:

Advanced Mapping System - New full-screen detailed maps and a smaller, always-up mini-map.

Sounds similar to some other popular MMOs to me... but I just wonder if the current map window will remain or be replaced by these two. Would a player need three different types of maps?