I wouldn't think so, but am not sure.
More likely it would just be a strong reservoir that results in repeated re-transmission back to humans via contact.
They probably have hit herd immunity or are close to it. That doesn't mean the virus goes away, obviously, it just means outbreaks won't be explosive going forward.
Won't stop an endemic level from sticking around for quite some time, especially since the deer probably don't mix at random.