Not how it sounds. Not a world in the cloud. What I want to suggest is a way to share my world with my friend or friends but not have to be on at the time. So that is I start a house in "our world" then log off she can get on to the same world from her our system in her own home and work on the house weather I'm on or not. So essentially a shared world with out a shared console. I don't know how explain it any better.
From a technical standpoint this is doable and has been suggested before. From a policy and Terms of Service standpoint, this isn't likely to happen. Microsoft has been very strict in their Terms of Service agreement with 4J studios, to the point of not allowing shared user content (or at least making it extremely prohibitive to do so).
The same terms of service agreement prevents user made Mods or the sharing of Game Files/Maps across user accounts from within the console environment.
In order to allow your friend to have access to your user account's cloud storage in order to continue to play in the same world when you are offline would constitute a security hole that Microsoft will not want to allow. Further, from the game perspective, your friend would have to adopt the role of Host (as their console would act as the Server) if you are not online to serve in that role, which would give her copy and save access to other drives, or even allow her read/write access to your cloud storage from her account.
While you might be ok with that, Microsoft frowns heavily on that level of file-sharing and account access.
The same terms of service agreement prevents user made Mods or the sharing of Game Files/Maps across user accounts from within the console environment.
In order to allow your friend to have access to your user account's cloud storage in order to continue to play in the same world when you are offline would constitute a security hole that Microsoft will not want to allow. Further, from the game perspective, your friend would have to adopt the role of Host (as their console would act as the Server) if you are not online to serve in that role, which would give her copy and save access to other drives, or even allow her read/write access to your cloud storage from her account.
While you might be ok with that, Microsoft frowns heavily on that level of file-sharing and account access.