Great question! It can depend. Some caches are never replaced and the reviewers see that it has been disabled for more than two weeks, then after about another two weeks they archive it if their is no response from the owner. Others can be hours or days. It depends.
Thanks for the reply. There are are couple caches close to me with this issue and I am curious if they are gonna put out another cache, or if possible I could place a cache for them. I would be willing to help maintain these caches if the cache owner didnt mind. I just don't know if this considered proper etiquette.