Just a suggestion for something I've found helpful after setting it up in my client:
Having the language on the prompt (%l) take the color of the language makes it easier spot that you're not using Lithmorran, after you're done using a different language.
[RPxp: Fair] [HP:perfect MV:fresh P:walk] (Lithmorran)(action)(bathed)
[RPxp: Fair] [HP:perfect MV:fresh P:walk] (Farin)(action)(bathed)
[RPxp: Fair] [HP:perfect MV:fresh P:walk] (Vandagan)(action)(bathed)
[RPxp: Fair] [HP:perfect MV:fresh P:walk] (Tubori)(action)(bathed)
etc.
Was a bit difficult to set-up in the client, so a server-side tweak to it might be nice for others!