Remember this is a complete rewrite. E16 can do all this, but IMO is getting too old, and slow. The Enlightenment team have been mainly working on all the building blocks at this stage, and not too much on the actual window manager.
With componets like evas which now has a media player built into it is going to be the best window manager out there.
If they have built it the way they were saying, it can be a fairly lean window manager if you build your theme correctly, without the builtin dvd player. ;-)