overall want to keep simple - add length-width to fireplace - may consider offset. bring out entire wall. we have decided to wall mount the tv over the fireplace, but want to have the fireplace in a "build-out" from the wall - but keep contemporary look, actuall fireeplace will be smaller than tv - so will bring some great black metallic tile to fram the fireplace with to make scale right like the third picture. May want to have some type of top and consider picture #5 for an idea - except sheetrockk rather than rock.
alternative idea for fireplace
can make firplace frame wider with double pannel of tile
can off set tv and firplace
can have shelves coming off side rather than hidden behind the sheetrock
like the use of black surface for whole space around fireplace.
another idea for fireplace wall with tv mountd in swivel