After a website shuts down, Rocketspark will keep the data for two months, after which it will be deleted from our servers. If you re-upgrade within those two months you can pick up where you left off, however, if you upgrade outside of those two months you'll need to redesign your site and add all your content again—it will be a blank slate.
If you would like to shut down your site temporarily but you want your data to be kept for longer than two months, then please get in touch with us about putting your site onto an on-hold plan.