Most of the times, my workload is like this:
Export style from local, import to remote
Export language from local, import to remote
Export addon 1 from local, import to remote
Export addon n from local, import to remote
Worst part is, I ALWAYS want the two of them to be synchronized, with my local being the master. My secondary administrators have instructions of NEVER ever make a template change without notifying me under the warranty that when I do updates I import the complete style and not individual templates.
(I do backups, just in case, of course)
Now, I want a MASTER export-import that does everything, meaning
Settings, Styles, Language, Addons. If my forum were wiped out I could set it up again in an instant with that.
Even better, a button that says "Deploy to", that asks for the forum URL, my admin password and some other special superadmin password, and just deploys the change to my remote forum. That would enable me to work in local and only deploy my changes to the forum when they are ready and tested. I could even have several forum instances for QA.
If it could do versioning and rollbacks, that would be a great plus, but I am not that picky
This is not only something I want, I think you would educate the community on the good part of never changing a production system but changing in a local environment, testing, then deploying. And it would make a really professional feature that I have yet to see in other systems.