Once we have Plazmic 4.7 I am sure that just like any other OS we can create themes that have any ammount of icons to no icons, to calendar entries, etc.
The only thing I am wondering about is that neat little menu when you click BB key and 'Options' that lets you change the number of rows etc. Would that conflict with a theme? Or maybe would they make it so it only works with the default precision zen theme?
In the mean time, I would just suggest to 'lock' the screen to see the full wallpaper.... same effect, just one more button press to get into the device.