I'm planning, if not separate daughter languages for nerurav, at least a set of almost mutually unintelligible dialects. Along with pronunciation changes, for at least one of them I'm planning a rather large grammatical shift in the form of word order (nerurav is currently orderless) and the dropping of part-of-speech and phrase markers. Another idea I had was for them to use different levels of formality and the like, so that for a given meaning, one dialect might use one word and another dialect might use another, and the two words would have been almost synonyms in the original language.
None of this will be implemented any time soon; nerurav itself doesn't even have a set phonology or lexicon yet. But the conworld for which nerurav developed does mention it on occasion, mostly in the form of speakers of the different dialects arguing over which is closest to the classical form.