The new sector map leaves off the areas which are no longer available to players (the randomly generated exploration nebulae, for example) and makes the various sectors and regions easier to understand, showing off all of the regions through the Delta Quadrant and other points of interest. You can even zoom in and print it out, if you would rather squint at a printed version. It’s a big galaxy out there, and having an improved visual guide is a great way to facilitate more bold going where others haven’t necessarily been before.
Source: Official Site