A few years ago, probably around 2, I know there was some version of WorldEdit that would copy chest contents. I used it to transfer my chests when the server owners would restart the server with a new world. That way, I could preserve my work/builds. At some point, I noticed WE stopped doing that. I'm not sure what version they were using, but again, this was around a couple years ago.
"Note: If you can't copy chests (they get emptied), then your version of WorldEdit is either incomplete (work in progress) or it is the wrong version (if you are using Bukkit)."
If you go to the wiki link, you'll find that in a pink box just under the header "Installation".
It's no biggie; just would be a HUGE convenience if that were something to get working again.
Thanks for the prompt response!