No not new content. More like caves look dated versus trees, grass, buildings, MGE on the outside. However, I am not a modder and I didnt realize how involved it would be. Plus I am making my comparison to Oblivion caves which look more realistic to me.
Just my observations.
vibrant morrowind was already mentioned. here is the http://www.gamesas.com/index.php?/topic/1082054-connarys-retextures-gonne/page__p__15774888entry15774888 for connary.
what replacer did u use so far? sounds like you have one, that leaves the caves out, which seems odd. I actually don't know, if http://elderscrolls.filefront.com/file/Morrowind_Visual_Pack_Combined;56241 does the caves. and for the ice caverns on solstheim there is this http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=6306 from vality.
ask me about replacers i know a lot^^
i cannot use mge on my old compi so i have to work with replacers to get screens like http://i974.photobucket.com/albums/ae224/mwscreen/blackwidow6.jpg, http://i974.photobucket.com/albums/ae224/mwscreen/blackwidow3.jpg and http://i974.photobucket.com/albums/ae224/mwscreen/blackwidow4.jpg.