Ok, from what I personally think is that - yes, just that the scope of the dream would probably be restricted to the knowledge the brain has. For example, a colour blind person - would only be dreaming in the colors he is familiar with, a born-deaf person might dream only visual dream and similarly a born-blind person may dream only audio dreams.
To put in another way, humans have limits on sounds they can hear (upper/lower) , and animals which have more sound capacity might actually dream outside the human limits , i.e. its own capacity but outside the human boundary.
Deaf-Blind person - Now that would be a challenging question. Though the answer for them might be - it is still be based on sensory motions that they (brain) are aware of.