Someone correct me but I do not think that loading or removing other mods is possible with DA.
I think I saw something that implied it may be possible in a later iteration of the 2.0 version, so that might be a possibility eventually, aztlan.
Would make for some very interesting dialog concepts as well... werewolf changes, normal to Hulk, that gargoyle mod going from human to statue... the Solid Snake and Halo Masterchief mods "undressing"